Is Interstellar Travel Impossible?

Netflix content is already dire

All I'll need is Minecraft and I'm set for the next few millennia

Netflix better improve the quality in that case or it is not going to work.

Exactly. We just need to find a cure for the ageing and cure for cancer.
The ageing is just a useless evolutionary mechanism from our past

Not to mention Video Games. VR especially. There is a reason the Enterprise had Holodecks.

You'd probably want to add lasers on booms pointing in front to vaporise dust before you run into it. You'd still get the kinetic energy of the grain, but it would at least be spread out, and thus do less damage.

Space doesn't exist, it's the government playing mental gymnastics to distract you from the truth.

According to Herbert Yorke, Fermi "followed up with a series of calculations on the probability of earthlike planets, the probability of life given an earth, the probability of humans given life, the likely rise and duration of high technology, and so on. He concluded on the basis of such calculations that we ought to have been visited long ago and many times over."

@@Kivikesku perhaps we have! lol! (sry to bring up there paranormal/out there stuff! :P )

@@Kivikesku did he not consider how difficult intersteller travel is though?

how do you know they communicate using radio? And, a radio signal sent from across the galaxy would take 1000s upon 1000s of years to reach us, and may have become far too scattered to be decoded.

@@dosomestuff1949 I don't know. I was merely commenting on what Fermi reportedly said back in the 1950's.

The scales are vastly incomparable and mostly incomprehensible.

@@spaceman9599 Exactly. The distances are incomprehensible, so we would underestimate the risk and go anyway

​@@Evan.the.Butler That is nonsense. Fact is with modern science we know the exact risks but we will go anyway. Back in ye old days they knew the risks but to a lesser extent.
We go because we are explorers and we go because we can.

I really hope AI will be used for good to solve this problem in the future

The problem is that if you compare crossing the Atlantic to traveling to Alpha Centauri, then going to the moon is like... reaching across your table for a beer. It's hugely out of scale to what we expect for the 'next hardest' trip. It takes our current spacecraft decades to reach Pluto - and Alpha C is 7700x further than that.

You don't need to turn around to decelerate, you just have a way to direct the engine thrust ahead of you.

It simplifies the shilding problem: Your torch will clear the way ahead of you.

@@JohnDlugosz For at least half the journey anyway, depending on the powerplant.

On the other hand the exhaust from whatever propulsion system you're using should be able to provide some level of protection, no?

@@Siddingsby yes some theoretical propulsion systems even rely on the conversion of relativistic collisions with the ship as a means of converting that energy into propulsion, taking what would be the equivalent of space air resistance / friction into a means of propulsion, such as the way a propeller uses air friction to induce sustained flight propulsion, as the propellers drag acts to pull air. But these are extremely theoretical and require high energy collisions so you’d have to get to that speed first.

Cool avatar. Who inspired you ?

Spacetime is the safeword

Was it good for you?

Feels good everytime. One of the most satisfying parts of every episode 😊

No spoiler alert 🚨 huh 🤔

Don’t kid yourself ! We are 🖖🏼👽NOT ALONE ! And there are large populations “out there” in space ! We are just barely out of the caves and still fighting each other like a bunch of toddlers over a toy or who gets a cookie first ! As HUMANITY MATURES INTO ADULTHOOD so will our TECHNOLOGY ! Just hope we don’t blow 💥up the PLANET before we Stop being so stupid 🙀👵🏻😱🎄🗳️💙🌵❤️✌🏻🇺🇸

@@brummyuk2151do you think we will get to another billion years with the state of climate change?

​@@nyko9631in a billion years the oceans will gave boiled away because the sun is getting larger and hotter at a rate of 10% every billion years. Estimates I've seen are about another half billion years before the sun makes the earth uninhabitable. As far as man made climate change the earth will recover from us if we were to disappear. Deep time wipes away everything.

@@nyko9631
"do you think we will get to another billion years with the state of climate change?"
Yes, absolutely. The trend is to go green. Here in California, we're 65% zero emission power, and 25% of all vehicles currently registered are EVs.
Even the worse case scenario in climate change doesn't wipe out humanity. We would have to move inland a bit, that's all. But I think we'll sidestep the worst of it because we're getting rid of fossil fuel for power and transportation.

We’re going to end up just living in space instead of a actual planet

The flare from the front engine brakes could take over the role of destroying particles and atoms as the danger gets less as you slow down

@@ekoreko4271 I'm pretty sure a meteor slamming into the exhaust at the speed of light will easily penatrate the engine

Which is why the ISV Venture Star from Avatar had the best solution. High powered laser from earth hits the massive solar sail to accelerate by 1.5G along with matter anti matter collision propulsion. That high powered massive laser vaporizes anything in the immediate trajectory. Once at cruising speed the ship flips and the mirror array extended thousands of miles ahead of the ship to block incoming particles. To slow down the ship just rotates 180 degrees and fires the engines

@@jaythekid4728 if we are going full fantasy. Then the Enterprise with warp engines and a deflector array will work just fine.

@@benhoffman6606
ISV Venture Star is Hard SF. It is based on The Valkyrie, a Hard SF spaceship created by Charles Pelligrino and physicist Jim Powell (Powell was at Brookhaven National Laboratory at the time). There's an entry for it on "Atomic Rockets" that you can look up (we can't put links here) and also wikipedia.
Light sails are hard sf, matter/antimatter rockets are hard sf.
The hypothetical Venture Star has another feature, a "Liquid droplet radiator" that acts to not only cool the spacecraft but to absorb and deflect dust particles etc.

The only time aerodynamic spacecraft makes sense is if the ship is capable of travelling at near light speed without blowing up from space dust. At those speeds while travelling through the interstellar medium, the gas would be like air and csuse drag on the ship, slowing it down.

@@69Kazeshini true. You also have to consider atmospheric entry/flight for landing or takeoff.

A flying box, or anything that looks like it was cobbled together in a junkyard - even if it's rock solid construction - violates the rule of cool. If the Mandalorian wouldn't be caught dead flying it, back to the drawing board! 😎

Aerodynamics would help attempt to deflect matter Instead of taking the brunt impact

Aerodynamic is also matterdynamic; it has a better chance even if that chance is marginal, of deflecting a solid object away than a flat surface..

Yes fellow human, it was certainly an asteroid.

@@aceofswords5741 🤣🤣🤣

Hold on, we've just seen an oddly looking long asteroid a few years ago, entering and leaving the solar system...

@@cmdrTremyss you're onto something!!

nice comment

I believe some people could. Radio was already in use by that time and first transmission was in 1896 so logically it was imagined in preceding 50 years minimally. The problem with faster than light travel is that we have never measured any matter travel that has traveled faster than the speed of light. The only thing shows the potential of faster than light travel is data via quantum entanglement of atoms. I believe any travel that we accomplish would be one way arc time migration. A combination of cryogenic hibernation and working with AI in shifts: hibernation 90% of time on voyage for all humans on ship. would be the only way. Psychologically I am not sure we survive. Currently the top speed we have achieved is 0.05% the speed of light. With massive technological improvements addressing all the challenges of getting a huge space arc supporting a couple 1000 people, plants, animals, and water to seed a colony to say 1% the speed of light we still have a journey lasting well over 400 years earth time to get anywhere. My opinion is that Star Trek like interstellar travel is likely as impossible as backwards time travel. I think the math suggests that as well. If our species is around and doesn’t experience another “dark ages” for say 10,000 years then maybe. But if may take another additional 100,000 years of prosperity that human then start to consider the eventuality that we won’t be able to extend the life of our sun or planet and start making the huge investment to get to a younger star with a habitable planet in orbit around it.

It'll never happen. Science fiction clap trap. We will destroy this planet through war. We are a terrible infliction on ourselves and we will self destruct. Crazy.

Such a fantastic book series and the TV series didn't disappoint. I appreciate both forms' attention to detail!

psst it was Tau Ceti ;)

Can't believe it was the Mormons that funded the Navoo

@@nuru666 All we need now is the Epstein Drive. Come on baby!!

@@Marth667 no fusion power.

Universe: "Oh, a wise guy, huh?"
(Borg cubes begin dropping out of subspace)

@@stevenscott2136 😄

"The universe is like a casino: the house always wins." (I came up with that. ☺)

And once we solved it, we can easily traverse the galaxy in no problem. At this point, new physics may find loopholes in relativity and thus allow for FTL travel, almost like how the sci-fi novel, "To Sleep in the Sea of Stars" did.

“On a long enough time line, the survival rate for everyone drops to zero.” In a cosmic blink of an eye, humanity will be gone and no one will remember us.

I had similar idea when I was a teen still had much to learn at that time but the premise was we human weren't actually the only humans we were once part of a great galactic empire that was super advanced but fractured and devolved into in fighting and war. The old method of travel was by bending space via gates from point to point like opening doors however the rulers of old sabotage the gates causing them shut down and drift off into space and be lost. Our solar system was the site a great battle (fighting over new colonizable world) then the gates shut off stranding everyone the fighting stopped as they realised they were stuck. Rather than fighting til the bitter end because they knew reinforcements weren't coming they came to the negotiating table deciding to settle different regions of the planet according to thier natural habitats they grew up on elsewhere in the galaxy. Thus the different ethnicities of today are all descended of remnants of the different humans from that battle (tying how all cultures have similar stories of visitors from sky despite not actually being in contact with each other during those time period's) anyway as time went things were lost and forgotten and we basically had to reset from zero and flash forward to where the real story kicks off and the humans of "today" travel the stars by using AI to navigate seed ships. A humans mind is stored in a storage device in the ship. The ship has "Matter stored" in a protected and shielded area where it kept human well, sludge is the non technical term it was some what like a cancerous organic mass that endlessly replicated on itself and the AI would cultivate it during the trip to "keep it fresh" and that exposing it to radiation encourage this growth upon arrival the AI prints a replicate of a human using the "Sludge" set out by the specifications of the stored humans data. Repairs and ship maintenance would be carried out by human crew being brought out of storage and temporarily inhabiting machine bodies. It was supposed to be the tale of one of these ships ment for seeding of a new world that upon arriving at their destination discover the planet has weird unnatural structures and they come to find out its the ruins of another civilisation of humans that the unnatural structures were the remnants of their civilisation one of the "capital worlds" of the previous human empire to be more accurate and that they all died off and unlike us they'd kept a better record of what happened the original language of humans being Babylonian script or chicken scratch as some call it. They even find that the "Sludge" is just a reinvention of old genetic tech the previous empire used for medical care (growing replacement organs) and also planet seeding as well in an underground and seal off area they find someone had been trying to preserve previous knowledge by carving information into the walls. The previous humans had problem with genetic diversity when colonising new planet's so they "grow" human cattle primitive humans and leave them on the planet to adapt the colonists would take trips to the world to "mingle with locals" while the gates were constructed a process taking decades the offspring would be born with traits resistant to the new environment effectively seeding the world. You also learn that humans looked vastly different in appearance to what they are today being kinda like the "Roswell grey aliens" but more human looking. There was another chamber that they found where someone perhaps the same person was leaving a detailed account of the begin of the war it talks of the growing need for "Purity" and new method to their expansion being needed then jumps ahead to mention of "Pale ones" staging a rebellion on their frozen hellworld and another about the "green ones" in their fungal jungle and the dark ones on their twice sun kissed world also rebelling and the empires strategy was to convince all the rebel factions that they were out to get each other too turning them against each through espionage and subterfuge and it worked only they didn't count on the fact that even though the rebels now hated and fought they hated the empire more and that even mid battle if the empire swooped in to mop up resistant they'd stop fighting each other long enough to stomp imperial troops into the muck then resume killing each other. With the final result being the gates being shut off to "Preserve the heart of the empire" which this place wasnt it so they were sacrificed as well id planned on making series with first being exploration of the world, archaeology some interior politics and other mysteries the trip back and learning they'd were being followed. Book two being the sharing information and the implication their may be other humans like us out there and humans not like us with a huge generation chip on their shoulder and what to do about OUR home being tagged by the follower. Book three I never got around to considering I might take it back up, but you reminded me off it sorry for the long message.

If a shrimp can create such a thing under immense pressure, surely the concept is worth a thought beyond first dismissals.

Speak for yourself.

@@Seymour-Butts_666 you might want to have that agressivity problem checked. That comment of yours was really useless, irrelevant and lame.

yea i mean for 1 even developing complex life doesnt guarantee intelligence tool based life(remember the dinos were dominating for hundreds of millions of years and im sorry to the birds of today but neither them nor a tyrannosaurus rex or stegasaurus were ever gonna figure out particle physics), so you have to have enough mass extinctions to get the right organisms but not enough to fully wipe everything, And then even if you get through all that and every other factor they might just realize how much energy this takes and just stick to their planet / solar system till the natural end

​@@JubioHDXimagine being that lame of a species.

The Fermi Paradox isn't
necessarily viable.

;)

"Everybody stayed home" has got to be the most depressing solution to the Fermi paradox ever...

Because insanity

Not sure if that would be a good idea
Making things even smaller just makes your crew more likely to reach their destination insane
Maybe virtual reality can help to make things seen bigger but still you would reach your objective with an insane crew full of cancer (and if you are really unluck they might be sterile with means that all that effort was for nothing)

surely by the time we can send people into interstellar space we have medical technology good enough to takeout the health implications of cancer

​@@valletasNo way we will travel large apartment for crew entertainment. Only way here is hybernation-like devices

@@pocoxiaomi5182 that would be the best but wouldnt solve the cancer and possible sterile problem
At the moment cryogenics is purely pseudoscience but if we do find a way to induce a coma or even semi-death and reliably bring people out of it it can work because then we would be able to send people on lower speeds since time isnt a problem anymore but im not sure if something like that is even possible and for now remains in the realm of fiction

True that

Absolutely, fortunately you accelerated with an engine capable of getting you to that speed. So unless you were a complete fool, you presumably left enough fuel onboard to slow you down again.

Or you send a machine ahead that shoots a laser beam at you before arrival

@@Quickshot0 What was implied is that when you leave, you can be accelerated without using too much of your fuel. One solution is to use stellasers (big lasers).
The solution to this problem is to send lighter probes in advance so that they can build stellasers at your destination, which isn't easy obviously but would work.

You’re forgetting about gravitational slingshots. They can be used to slow a spacecraft down.

Vieyra died of dysentery ☠️

I was literally just talking to a friend about Oregon Trail today and then found this video! Loved it too. I also recently stumbled across a fun sci-fi book series on your premise that you might enjoy, called "We are Legion (We are Bob)."

Then we get some skynet type AI who lands on the planet and starts it own species on the planet, and decides we aren't worth sharing with or even keeping around anymore lol.

Considering we have created a civilization with a foresight of 4 years... i dunno

Oh yes of course, Gliese-710 for instance, one my favourites…

@@ernestoa.jimenez3206 Not to mention the level of social and political cooperation required to do that. I mean we couldn't even get everybody to cooperate on how to handle a pandemic. There's no way we could get everybody on the same page with handling interstellar travel. Everything from traveling there to who owns the resources when we get there would be a catastrophe.

@@ernestoa.jimenez3206 4 years? That's quite generous of you.

@@ernestoa.jimenez3206 more like 4 months

Good point. So you's have to have a shield on the back too, with the motor poking through. Or somehow move the ice shield to the back with robots that could withstand the radiation. Sounds impossible again.

just calculate the decel ahead of time, while decellerating before youve actually reached your destination would slow down the ship farther and farther from relativistic speeds, thereby taking a little longer to reach the destination, you'd simply have to find a balance between prolonging the journey and safely stopping the ship with only the redirected thrust of the rear engines, therefore not requiring us to turn the whole ship backwards and compromise the shielding.

Depends on the propulsion. If onboard then you might be able to actually create a plasma shield it. On the other hand, on board propulsion requires tech we simply do not have yet or for the near future. Better to leave the engine here.

Wouldn’t the deceleration also need to take into account how much humans can handle g-force levels? Pretty sure no human has ever endured months of 7gs let alone years

🤣 that always made me chuckle as well

Because they've this obnoxious idea to make humans not too different from current ones. Like normal people, but travelling in space instead of an airplane. Imagine if in the 1500s they'd have imagined how travel in space would be like. They would have imagined a flying caravel with space sailors or stuff like that. Computers? What they're?

The space-faring I can see, because they had jump drives that ignored all the big radiation hazards. But given the Cylons could make virtually indistinguishable human-like variants, you'd figure they'd have to have enough biological knowledge to cure cancer.

Those are completry different areas of science and techno,ogy, why assume they would be more advanced in every area there are lots of complex factors affecting how science and technology develop. Also cancer" isn't a single thing anyway, maybe they could cure some cancer we can't but not that particular one, maybe it was caught too late.

It's space cancer, way worse.

Just to be pedantic, if you actually travelled AT the speed of light, for you the journey would take no time at all. That's something they didn't cover here, if you go fast enough the journey time is hugely reduced.

A distance of 4 ly is not prohibitively large.

@@volos_olympusyes it is.

@@geraldbutler5484 nop

If the target is an entire star system then that`s a pretty big target. Say you want to send a probe to Alpha Centauri and have it do a few flybys of any planets that may be there, take some pictures and other data then return to a point where transmitting the data back to Earth is possible. Does a thirty-year time scale seem plausible assuming some developments in AI and propulsion systems? Consider how long things like the Voyager probes have been operating.

Larer array (or better microwave array) cannot drive anything higher than c, only alteration of space time can do that. You are on to something with the soliton analogy - equally, we cannot do that yet - we'd need serious gravity manipulation to do so.

A ray of hope for future generations

Rare on big KRplus channels but not rare on smaller youtube channels.

We had physicists before we conceived of wormholes. It isn't wormholes that inspired physicists to be physicist but the desire to understand more of reality itself.

My friend became a Palaeontologist having been fascinated by Million years BC as a child.

Fairy tales got physicists studying physics whilst stopping capitalism's ecocide got conscientious folk studying biology? I could agree with that.

You got that Right With Putin talking Nukes!

Most of the issues could be resolved if we could transfer out consciousness into machines. A majority of issues that come from space travel would be moot if we were no longer flesh and blood.

@@failegion7828 Transferring the human brain to a machine is another story from the land of sci-fi fairytales. It simply cannot be done. While we can make very complex computers with more information that we can hold in our brains they are not going to be able to be human. This is not my opinion. There are popular science books written by brain sciences and computer scientists on the subject by scientists.

@@nickames3808 yk if you thought hard enough the possibility of humans going extinct through nukes is less than us getting obliterated by aliens in a surprise attack.

Dude we build space ships with super thin haules. They are not made to do the job. I know the problem of enough speed to get to orbit and can only get 2% payload. But the ships can be built in space. And we need to use atomic energy. Chemical rockets are stupid for the job.

small minds are easily amused

Im starting to find it amusing when someone says to grow up, because hitting the coffin as early as possible is clearly how you win the game. Im not speaking in terms of age. That happens regardless in this, whatever. Its a mentality. Its actually the biggest clue that nobody really knew what was going on. The things i have seen and the response to it is basically what freed my mind.
Its like looking at a wave in the ocean and scolding it for moving. I mean what?

and the answers that are gifted or presented in order to solve certain Paradigm.(?)..

The wheels are still square.

I agree, we are still joined at the hip to propulsion systems which embrace Newton's Third Law thus making faster than light travel, or anything approaching light travel impossible. We aren't seeing alien visitors because they have the same problem.

And Ion drive is so slow to accelerate/decelerate.

We kind of already have it. Nuclear bomb rocket (project Orion), is the only technically viable solution today

@@aigarsrosenberg6208 That is about as much use as a chocolate fireguard.
I can see several reasons why Project Orion is just a plain bad idea. Not least of which was that it was dreamt up within five years of the end of WW2. So, that fits right in with glorified WW2 tech with some bolt ons.
Just more of the same old flint chippings dressed up as flakes.

In sci-fi movies yes we will try harder. In reality.............

The reality is that tl;dr the easy solution to the problem is to not be a biological lifeform. Advanced AI can readily adapt to the universe, and sadly many planets likely already had that happen where the machine-like intelligences basically consider beings like us their antecedents and forebears in similar way to how we view swamp bacteria and simple eukaryotes to be our forebears. Note that this is still unlikely to be detectable with human technology, as these interstellar civilizations would still likely be operating on such long timescales that even if one were near us AND using technology recognizable to us for comms we'd likely never hear their signal more frequently than centuries, but the obvious solution to that is also that their civilizations exist so apart in not just space but also time that we're not going to be aware of a civilization existing several galaxies away right now nor are we going to be aware of Andromedans existing seven billion years ago before some great Happening took them out. A good number of civilizations within a thousand light years may well have existed and never be discovered, because they may have never left and their ruins got blasted off the face of the planet or swallowed in a blackhole after their stars died. Or alternatively, most of them didn't pass the Filter, and through technology turned their once cool, teeming worlds into Venus with the remains of the ocean having long since been evaporated by positive feedback loops of climate change, or some other disastrous technology eliminating the biosphere until even geological evidence won't be found by a probe.
Alternatively, just don't think *you* will get to set foot on a planet, but rather your pod children's descendents. A generation ship is feasible with modern technology. The problem is good luck convincing anybody who believes in market ideology to self-sacrifice without any personal payoffs. As this will be expensive and require the personal sacrifice of everyone on board to being imprisoned on a ship that may or may not make it, the cheaper option is to find a way to have genebanks of simple organisms cared for by robots basically and just not worry about it for the next 500 hundred years. Do note: this will also not work well in human empire-spans, let alone lifespans, because all evidence seems to indicate earth's atmosphere didn't get oxygenated until microbes did it over hundreds of millions of years, and so you're likely to find most water worlds with only thin traces of atmosphere on landing. While fortunately H20 is plentiful fuel and breathable air eventually, that doesn't help when getting the equipment there alone will take lifetimes.
I would suggest that you look at this as flying. There is literally no physical way for you to ever fly by flapping your arms. However, with the bringing together of a wide variety of disparate technologies like fossil fuels combustion, aerodynamics, new materials building with purified metal alloys, etc. as well as an understanding of aerodynamics, you can in theory bend the laws of physics in a way which actually works if you start teaching people in 1400 A.D. and give them time to bring up all the necessary correlated technologies into production over a hundred years rather than over 500, but it still takes time and needs a lot of seemingly unrelated things be brought together. So it may be possible, in a sense, just nothing like you're expecting. But even still, the most likely scenario is that it's simply not possible for a living organism to travel to distant stars within its own lifetime.

@@onsokumaru4663 as far as we can tell technology has no limits, if we can go from unga bunga rock people to holding a device that contains all of our collective knowledge, can contact anyone around the globe, and capture reality itself then im sure anything is possible as long as we are smart enough

@@How_To_Play1 The nail in the coffin is that any technology that makes interstellar travel reasonable likely changes life on Earth so profoundly that leaving the system may no longer be desirable or useful.

Nothing but the best from the great minds of youtube.
Almost the same thing as getting your daily news from the comics section.

Seems that interstellar travel is a lot like living in Australia. Sure everything here is trying to kill you, just not that hard...

Long one of my favorite sci/fy tales.

I feel that just like our roads and highways they started out as rudimentary roads and with the invention of newer road clearing machines that we will have stellar pathways cleared of micro and macro sized debris little by little we will clear those well used routes.

@@johni1622 Its alot easier to build roads when you can breathe, take a break and go home without worrying about dying in the attempt to do any of those things

@@nelson_rebel3907 Duh, who said anything about easy lol

@@johni1622 It's more like impossible at the moment. To begin you'd have to solve the problem with even getting equipment, and people up into space which by itself is a monumental task that takes enourmous quantities of resources to do safely.
We have no propulsion besides fossil fuels to get us into earths orbit and into space.
This isnt sustainable for more than a couple hundred years. And even that is pretty dubious. Once those are depleted we cant even find more of that in space, and to travel in space requires enourmous amounts of fuel, time and resources.
We cant even begin to plan something out as insanely advanced as building space structures when we cant have the capability to start to do it.

It'll try a lot harder on mars.

I almost wouldnt mind it if did at this point

@@nelson_rebel3907 same bruh same..specially the usa there's a fcking gender fluid sh*t existing!

Sails can brake by changing their configuration to bounce the light back onto a detached central part, which gets slowly slowed. No flipping needed.

"Songs Of Distant Earth", I think

He also had a monolith on a moon of Saturn be a gateway to a hotel room that turned an astronaut into a cosmic baby and later turned the planet Jupiter into a 2nd sun. So...not exactly scientific stuff.

@@docsavage8640 he also predicted the use of satellites way before they were actually used for commercial purposes and materials such as carbon fibre , but you have done so much better ... what a waste of time is your comment .

Atleast you get to enjoy a pension in a not so hostile enviroment. Stuff like this really screws with the mind even if its logical possible if they send more ships down the line.

@@Legion12Centurion really does screw with the mind doesn’t it
Like it occurred to me the other day , if one day there’s a colony on Mars and one bloke buys a brand new starship and fills it with the idea of trading when he arrives at Mars …..how much will things have changed in the years it takes him to arrive 🤔

@@Luddite1Travel time to Mars is about seven months and you can still communicate with earth and mars during that time, so they probably won't be surprised.

@@Astrophilicus that's true, a constant beam of news to Alpha Centauri system means you'll be getting four year old news by the time you get to destination but that's not too bad a lag to keep up with tech.

@@Astrophilicus That's true, but this 6/7 months flight is only possible once in 26 months, as Mars' orbit is elliptical (even then it's a distance of 60 million kilometers).

The only way interstellar travel will be possible is if we can find an Idol to sing inspiring songs to get us there obviously.

I was thinking more along the lines of Battletech/MechWarrior with jumpships, but that relies on fictional technology of course.
Also, from a Battletech fan to a Macross fan, I think we can agree that Harmony Gold sucks.

Traveling takes time.. could we create a sustained shield that we could project in front of us that could prevent a critical impact from particles in our path?
A slower ship that can store enough energy and renew through interstellar matter or planned way points would provide time for fermentation and civi!ized discussion..
Cheers!!

you may have solved fermi paradox

Why would you love to think any of those things? Are you nihilistic or just lazy?

And your talking time scales that we would surely evolve in some fashion...what would we look like? Unless we slove aging process or hibernate. 🤯

That’s not true at all.🙄🙄🤦‍♂️🤡

Abandon ship

Is that ever addressed? Yes, you may somehow get to 0.2c, but how do you stop or slow at the other end????

@@peterlip8 I guess if you use a solar wind sail to speed up, and keep it from being destroyed for 20+ years, it'll slow you down as you approach the other star..

To mortal biological lifeforms, it would be extra^N large, where N > 100.

Supermassive interstellar medium?

"Space is big. Really big. You just won't believe how vastly hugely mind-bogglingly big it is. I mean, you may think it's a long way down the road to the chemist, but that's just peanuts to space." -- D.A.

Deniers bias could be a factor

Ah yes, that will certainly help and not cause any worse side-problems.

@@osmosisjones4912 it's a joke from the show the expanse. Spoilers: it's one of the few things that isn't realistic in the hard sci Fi books bc it's alien.

@@justinh.7846 isn't hydrogen the protomolecule

And Epstein drive.

Make it so!

True. Especially as we already do experiments (we call them "missions to ISS"), where we can determine (the sample size is already over a thousand humans) which cancers are more likely with space. We don't have as much cosmic rays as you have on a trip to the Centauri system, but we can still try to get the statistics so that we know: "We need to find cures for that or that cancer". In some places we might not even need to. For example, if space flight would give you thyroid cancer, you can just get rid of the organ and take thyroid pills instead (as somebody living without such organ I can tell you: you can live without it!)

SFIA is my nightly sleepy time podcast and he's amazing and made me think about truly insane stuff in a very rational and serious manner. Made me wonder about this episode of spacetime, where are all the generation ships? If you don't need to go all the way up to 0.2c and can cruise at 0.05c or even 0.01c a lot of the issues brought up here kinda go away and you can build big and robust enough that you can get rid of the rest easily considering you don't need to accelerate nearly as hard. Generation ships fix everything and Isaac said "nah there's still better options"
If you read all of this and you're not the guy I answered go watch Isaac's channel

Agreed! That small scale cancer trial that was completely successful for 18/18 people with no side effects is definitely exciting. It basically allowed our own immune system to be able to effectively identify and target cancer cells. If that can be generalized and works as well in larger scale trials...

I'd certainly believe we'll have excellent cancer therapy before the first interstellar mission. Also quite likely is that radiation shielding, and mitigating cosmic dust will be no obstacle to people in the near future. Even if we don't have longevity or portable cancer therapy by that time, there's also the distinct possibility that the spacecraft could be crewed mostly by radiation-resistant machines. We might also just decide to only dedicate a small portion of the spacecraft to habitation and sensitive electronics, with extra heavy shielding.

@@DctrBread Our bodies already know how to fight cancer. That particular mechanism is impaired due to our highly processed diet. When people with cancer are put on a whole food diet, their own blood dramatically increases it's cancer-fighting abilitiy without drugs or any other intervention. It gives one pause.
krplus.net/bidio/nLyQiqmZdondc4Y

That is pretty much the same principle as every Star Trek ship with their deflector arrays.

That points out the absurdity of interstellar space travel.

You should subscribe to Event Horizon, John Michael Godier, Fraser Cain, and many others

Why does pure fantasy and speculation, about things we won't be able to accomplish for the next 1000 years, give you a warm feeling?
Interstellar travel vs pandemics, corruption, pollution, global warming, etc.

The same way thinking about the universe and our small part, makes our efforts seem meaningless, so too do our problems become meaningless in that span. It's a type of escape from our daily toils, but one that is fascinating, because it's probably mostly true.

@@DerekDavis213 How about interstellar travel vs highest literacy in history, most distributed wealth in history, longest lifespans in history, safest time to be alive in history, best healthcare availability and lowest chance of dying from disease in history, etc.? How about instead of basing your worldview on the constant news media crisis hype cycle you look at the actual data that shows that the modern world is objectively the best time to be alive in all of human history for almost all the human population

🙄🤡🤦‍♂️🤦‍♂️🤦‍♂️

I don't see why not, a powerful engine is an equally powerful weapon after all. I'd be more worried about possibly getting hit while you're turning around.
However, throwing out a multi layered mm-thick shield during your journey should hopefully prevent most of these issues. They should be moving relative to you while you're flipping, so you can have them move out of the way for retrieval and stowage before you relight your main engine.

One solution I have seen proposed in sci fi is that the entire skin of the ship is a water tank / jacket which can be pumped around to provide more protection where needed. Assuming a fusion drive, the water could likely be used as fuel.

Just move/swing the shield mass from the front to the back. Good point about the exhaust path though. Maybe the exhaust does not need to be on the same line traced out by the habitation i.e offset the propulsion sideways relative to habitation.

No, rotate the shielding where/when needed.

Yeah, none of the other channels like Event Horizon, godier, or fraser cain have really talked about this

just need to read more. A C Clark already addressed it in a fair number of novels - "The songs of distant Earth" for one. The ship stopped at another colony to rebuild its water shield.

@@jessepollard7132 need more hours in the day too ;)

Right now, Religion is radicalizing itself AND it fuses with the Right-Wing. I mean, just look at the massive Support DeSantis gets. Hes openly terrible but Shapiro makes a misinformation Campaign right now for him, trying his best to support him, which directly supports hate and big0try.
Not much can be done, so please go vote, support Drew, watch conspiracy-debunk-youtubers and most importantly watch Telltale Atheist.

The nail in the coffin is that any technology that makes interstellar travel reasonable likely changes life on Earth so profoundly that leaving the system may no longer be desirable or useful.

@@tobyvision Thats not a Nail, thats called baseless Speculation.

@@nenmaster5218 think of it this way, any of the energy manipulation requirements for interstellar travel are so profound that they would completely transform energy production on Earth. Or for example, long before we could leave our own system we could capture and mine asteroids, which would absolutely dwarf all mineral wealth produced on Earth. Or most profoundly, genetic engineering will open solutions to so many of our problems, will open new horizons of our existence at much, much more obtainable costs than trying to reach another star.

Yea because human arrogance government just admitted that where craft flying i out skies and they have no who they are

Nah, Earth is worst. Statistically speaking, you have a much higher change of dying on Earth.

@@Hansulf dying from what mass extinctions rarely happen alout of natural disasters happed and we survived for 2 million years 😅 no country dumb enough to start nuclear war no one wins

@@isaacharvison5323 you do not use correct grammar

@@isaacharvison5323 Who cares about Wars. Everybody dies at some point. And most people die on earth, even if its because of age related causes. It was a ironic comment jajaja ✌️😉

If you could go beyond the "possible", then, whatever your found there would be "possible" as well.
"Impossible" means it's out of reach for real, you can't go there, no matter what you do.
Now, Clarke was probably talking about our own mental barriers, not about the limitations of physics.

@@Goreuncle People thought flying was impossible until someone did it. Same for going to the moon. Just because we *think* something is impossible now doesn’t mean it actually is.

@@Goreuncle it could be read both ways.
By doing the impossible we find its possible (moving through walls).
and by modelling the impossible (like seeing the past and turning it into history, or by studying the insides of a black hole) we can see the possible (in the near or far future)

I agree

Loved Cixin Liu’s example in Three Body Problem

Interstellar version of optical tweezers perhaps?

Mby a solar sail in reverse? So a solar 'parachute'?

You could:
a. use solar sails to slow down
b. use solar panels to power a laser or electric propulsion system
c. use a magnetic sail with superconducting wire loops, possibly in conjunction with a. or b.
d. just fly past into the void, but release probes or drones towards any interesting planets, or just beam back any data or telemetry on the fly-by (Starshot approach).

I assume you could plot a course to pass by the star and reverse your solar sails to use the star's energy to decelerate. Get close enough to the star and it should provide a good amount of force to slow you down, especially when you're moving quickly into the star.

There are other issues that don’t seem to be discussed-we’re talking about going to the nearest star here. But spacetime is incomprehensibly vast. Not only would we likely have to travel ridiculously far to reach other life, we’d have to be traveling in the right direction AND at the right time.
What do I mean by “at the right time?” Well, to get to far away life, we’d have to contend with the relativity of time. If they are close to at rest with respect to Earth, they’d age must faster than our ship’s crew by the time we reach them. And vice versa if they were coming to Earth.
1. Knowing where to look is extremely difficult due to the vastness of space.
2. Knowing WHEN to look is just as crucial. It may be that extraterrestrial life elsewhere in the universe is long extinct.
3. Even if aliens found our signals, would they be significantly redshifted and perhaps not comprehensible? If not, would we be extinct by the time our signal reaches then or their signal reaches us? Would THEY be extinct or moved by the time our signal reaches them?
This is usually just swept under the rug, but the insane vastness of spacetime probably plays a big role.

There are tons of solutions to the Fermi paradox, my favorite has to do with the fact that the most recent estimation of stars in the milky way galaxy that have a planet similar enough to ours that life like ours could evolve on it is less than 30 ... And that doesn't even guarantee life. The point being that we're probably not alone but likely we are in this galaxy or any galaxy near it.
Which although sobering, is probably a good thing too.

There are probably intelligent species that aren't motivated by money. Maybe some space bees just get to work and can achieve things that human flaws prevent from happening here sooner (if ever).

Your issue with the fermi paradox seems to presume that we must or aliens must travel to our solar system for us to know about them. Travel isnt required at all.... if we receive radio signals that are unequivocally intelligent life then the paradox is eliminated.

@@davidaustin6962 I like the dark forest solution.... we dont hear anyone else the same way creatures in a dark forest with lots of predators likely dont know about all the other critters around. Too dangerous to make themselves known. Then here comes earth, a recently hatched fledgling crying out for food and then eaten before it even knew what happened. Its not that there arent intelligent civilizations, its just that they are all quiet. Because all the loud ones... go away....

I think the second idea runs into the same problem as spacewalks: Personal equipment couldn't possibly give any kind of real protection in that environment, so unless those non-crew parts of the ship are also significantly shielded, you're consigning your maintenance crew to death by space cancer.

Just use remote controlled robots. Problem solved.

I'm glad it wasn't just me. Maybe a good ol bussard ramjet

@@TheRogueWolf If the level of technology needed to take on an actual interstellar journey was present, there would definitely be maintenance robots.
The real question is will the radioactive space robots turn on the crew?

I don't think relativistic collisions as a fuel source could work, because any collisions would sap forward momentum from the ship, and it shouldn't be possible to extract more energy from those collisions than would be required to offset that momentum reduction. Sort of like how you couldn't have a boat that's powered by waterwheels sailing upstream.

we wouldn't even be the same species anymore.....that's an insight people miss
we can't populate space with humans, just fill it with aliens

@@apokatastasian2831 For real. Even the next State over that's like 3 hours away has a different culture, accent, and way of seeing things (politics). You stretch this to different countries, and the difference is even bigger with different languages, morals, behaviors, etc. Now imagine putting humans on a different planet. We would not be the same species, and we would be too different to cooperate or feel as one.

Not if people start living 1000s of years.

@@apokatastasian2831 By that same argument, our ancestors and our evolutionary descendants would not be human, and moreover, your definition of human is far to narrow. Yes, they act the same way and look the same, and have a similar language, but oh-no they're not human because they're to tall and skinny, or green, or three feet tall, etc. We cAaAn'T hAVe tHAAt! They're to dIFReNT So It DoEsnT CoUNT. I guess we should never colonize space then in the first place. No. that's a nonsensical outlook.

@@halfpanbread-bread820 our ancestors (if you go back far enough) were indeed not human, and perhaps a few millenia later our descendants may not be either (due to both biological and linguistic evolution)

I think that's probably THE dumbest idea. Social civilizations are complicated, and wars or whatever that break out will always have survivors somewhere.
It's just scientific fear mongering with the idea that we should all be "global citizens" or face collapse. We're afraid to admit that the aliens would also have countries with borders, and probably a space America too.

It's not so bad. We're still breathing. For now.

@@bishopvida Indeed. Someone I went to school with died recently, in a very flippant way and at no fault of their own - we are very fortunate with every daily opportunity we're given.

@@piterpraker3399 preach spodermaen

No, it isn't. It isn't even true of US.

Well said! I am also here to learn how to invest after listening to a lady on tv talk about the importance of investing and how she made 7 figure in 3 month, somehow the video taught me nothing and left me even more confused, I'm a newbie and I'm open to ideas on how to invest for retirement

@@rajeshupadhyay5683lookup Priscilla Dearmin-Turner, this is her name online, she's now our real investment prodigy since the crash and have help me recovered my loses

Despite the economic crisis and the rate of unemployment now is the best time to invest

Investment now will be wise but the truth is investing on your own will be a high risk. I think it will be best to get a professional👌

@@davidhudson3001Thank you, Going through her profile in her webpage, she smashed all her state certificate and accreditation🙏

Now all we have to do is invent anti-gravity fields. Then find a way to scale them up to the size of a space craft.

@@gwarf343 a generation is only 30 years, a lifetime is 80 years, perhaps 100 years.

@@gwarf343 That's more or less the age at which people reproduce.

@@zarkospasojevic6272 IT is also about the minimum time to have children and raise them to adults.

That will take to long. Andromeda and the Milky way will become one galaxy one day, but not for a very long time. We want to send people into spacetime as fast as possible. I believe we will do it.

@@Heliocentric In interstellar space life expectancy is likely to be much shorter than on Earth.

The universe:”You should see how they treat me over here” 😫

Humans always find a way to increase the difficulty lol.

You just activated my trap card.

He hasn't spent enough time in Australia.

@@stevehudson1111 Good point.
Aboriginal Australian cave art contains maps in their depictions. So, their indigenous knowledge could be useful in sharing how to survive through harsh terrain/environment.