We Will Never Be able to Leave The Solar System And I'll Explain Why 

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If the earth were microscopic and the sun was the size of a period at the end of a sentence, it would be one inch to the sun, the nearest star would be 4.3 miles away, but the nearest galaxy would be 2,500,000 miles away! Even putting dimensions on a microscopic scale the distances soon become astronomical.

No matter how we screwed up the Earth it would always be easier to repair it than to go try to terarform another planet.

We’re in a unbelievable Starship with a Sun to go around the Galaxy! Set up for Life!

The technology we will have available in one or two hundred years would seem like magic today. Instead of saying "we can't", I say "We can't right now..."

200 years ago the thought of flying above the clouds faster than the speed of sound would have been laughable.

When the question of "Why haven't aliens visited us?" the answer would be: if a civilization ever reached a level of intelligence to be able to overcome the issues brought up in this video, they would be smart enough to realize what a tremendous waste of time and resources it would be.

We're going to have to learn to survive here first, before trying to survive somewhere else in the universe.

The only statement in this video that rings absolutely true is the one at the end: "we cannot even imagine!"

On the cosmic scale, humanity is still in its infancy, and infants have limited awareness of their capabilities.

Our population will peak this century and will then decline. We probably will NEVER reach even the closest stars. Technological and psychological problems will render it all but impossible.

Certain theories in physics suggest that the universe has more spacial dimensions that we currently have access to. If we learn how to access additional dimensions, it becomes trivial to connect two spacial points of a lower dimension. Imagine an ant walking along a string. It's basically a one dimensional world, forwards or backwards along the string. But a 3 dimensional creature, like us, can easily loop the string in any way we want, allowing the ant to "teleport" from any point on the string to any other point we choose with just a few short ant steps. And this works regardless of the length of the string. It isn't very hard for us to imagine how a very intelligent ant species could figure that out somehow and come up with a way of forcing an otherwise straight string to bend and loop across itself... so is it so hard to imagine that we could figure out a 4th or 5th dimensional solution for our 3 dimensional situation too? BTW: The video's entire argument is based on Einsteinian physics, which, like Newtonian physics, is known to be a very good guess and very useful for a lot of applications, but not 100% correct.

Humanity can't even agree on taking steps toward its own survival even when we know what to do, imagine tackling interstellar travel

Without a paradigm shift in theoretical physics and engineering, we're pretty much stuck on Earth.

These arguments make it highly unlikely that any species has visited us as well.

My wife asked me if I believe aliens have ever visited Earth. I said no because the logistics of a trip like that would make it nearly impossible. Your video backs up my logic, and I will be happy to steer all those idiots out there who believe aliens from other worlds have already visited Earth or are visiting right now to this video! UFO sightings that are actually thought to be alien-related are out of the question, and just ridiculous! It's nice to put all these (alien) UFO sightings horsesh*t to rest!

Finally a video creator who is not selling dreams to people.

There are good reasons to believe space settlement within the solar system will primarily be within O'Neill cylinders. If so they also constitute the ideal generation ship. People living in such colonies won't leave home to travel between the stars, they'll take home with them.

I agree, the immense distances and harsh conditions outside our solar system make it incredibly unlikely for us to venture beyond it. The energy requirements and technological challenges, like surviving the cosmic radiation and the vast emptiness, just seem insurmountable to me.

Imagine thinking we would be able to survive on planets we didn't evolve to live on..

And early in the 1800's "experts" in England declared that people could never travel on railways because the human body could not withstand the force of moving at thirty miles per hour!

It's crazy to think the speed of light is still to slow for intergalactic travel lol 😅

People watch too much Star Trek and sci-fi and think we'll just be able to zip around the galaxy. The distance to just the next star is mind-boggling by itself.

Why is so hard for some people to understand space travel is about expanding, not about fleeing or abandoning earth?

You missed the bit where any spacecraft would need to be covered in 1m thick lead to block cosmic radiation from every direction. A spec of dust hitting a spacecraft at 50% light speed would disintegrate it.

A 21st century solution to a 25 century problem…Remember when we thought we could travel to the moon via a cannon.

This is why we have never been visited by aliens 👽

Dismissing 'considerations' nobody really considered, then taking challenges as impossible problems, and thus dismissing things.

RU-vid has to seriously start cracking down on these channels that use filler to pad out what is essentially 5 minutes worth of information.

We are stuck and doom on this planet. Let's try to make a pleasant stay.

The money we are wasting trying to run away could be better used in stopping further destroying our only habitable home

I can accept this video a lot more easily than the one he did where he said humanity would never step foot on Mars at any point in the future, near or far, and neither would any form of artificial intelligence that we create. That video was posted a ways back and, for some reason, I'm still pretty salty about it. Regardless, I love the channel and never miss a video.

To a person time-traveling from 1800 to today, our current technology would look like magic to him. They couldn't even begin to concieve what technologies would come forth two hundred years into the future. You sound like that time traveler.

I totally agree! We are stuck here. And….if we screw this place up we’ll come to an end here. Wake up

And there goes the *BIGGEST* Dream of my inner Child 😢

An alien species advanced enough to be able to visit earth, would also be advanced enough to know better than to visit earth. We are the worst this universe has to offer and we think otherwise. I’m sure we are known by everyone out there as the rough neighborhood in this galaxy.

When one has concluded that FTL travel and/or wormholes cannot even solve the inevitable dilemmas the future brings... the only reasonable reaction damn well better involve doing everything in one's power to maintain what one already has, by any means necessary.

we can't even send someone to Mars for goodness sake

We underestimate the issues and overestimate the possibilities. It's one thing to visit (and even that seems problematic), and a whole other thing to colonize another planet. Evolution has fine-tuned us for one thing, to live and thrive on THIS planet with its many variables.

To quote Carl Sagan's "Pale Blue Dot": "The Earth is where we make our stand" Sci-fi is fun and it's okay to dream, but anyone thinking we can escape the consequences of our actions by running out into space are deluding themselves. That is why it's extra important to do whatever it takes to ensure Earth stays habitable for humans for as long as possible. "It underscores our responsibility to deal more kindly with one another, and to preserve and cherish the pale blue dot; the only home we've ever known"

People used to think the human body couldn't survive at speeds greater than 100 km/h not too long ago. I'm constantly amazed by how confident people are when making these predictions. We are incredibly young as a technological species, so this is like a person from thousands of years ago saying we will never be able to instantly communicate with people at long distances. Just because you think these problems are insurmountable now because you can't even imagine a solution to them without resorting to impossible physics, doesn't mean that they are. We don't know everything about the universe and the laws of physics or what game changing discoveries lie ahead, even though most scientists like to pretend we do. It's impossible to imagine how our technology will be 200 years from now, let alone thousands of years.

Columbus didn't discover Turtle Island he invaded it. And you know that there were human beings already there so ...

I'm as much a technological optimist as anyone, but as a trained economist, I fully understand the challenges posed by resource constraints and the difficulties of achieving "time consistency" in collective action requiring VERY long-term thinking AND resource commitments. I don't think these are insurmountable, just that we can't be naive about how to get from current point in space-time "A" to a hypothetically feasible future point "B". I'd even add to one of the skeptical points raised in the video. Trying to settle an already living world with its own complex, long-established biome is just as likely (and perhaps much more likely) to kill us and any earth-born biome we have to take with us to survive the trip than it is to suffer a total collapse in the wake of our invasion. We'd bring so little actual biomass (and such limited genetic variation) in comparison to the mass and genetic variation of what was already on the planet that we'd be something akin to a low-level infection of a sort that a complex living planet-spanning biome would already have seen many times before over its long natural history.

Maybe living like the Amish is the answer instead of more technology

The best way to get a human to do new things, is tell them they can't do it. How many times has it happened now?

13 :45 you only have to look up at the night sky and see how many meteorites hit this planet every year to fathom that space is far from empty..

It just strikes me like a slap when it occured to me that in our early days when danger was everywhere and how easy it would have been to meet our demise due to small numbers. We overcame time and time again these threats by working together with some modicum of taking great care of each other. Juxtapose with todays challenges coupled with todays divisive mindsets and hatred towards other races, we are destroying our chances because there are billions of us.

Been saying this for years. Humans will never travel the speed of light. Without that, the vast distances would make it an impossible journey. It would likely take the enormous resources of a combined planet working together to fund and develop such a mission. We know that is not going to happen. The video touched on some of the issues with long-term travel, namely cosmic radiation and forced isolation. But there are more issues. The "crew" you would select would know they are embarking on a journey never to return. The destination could prove inhospitable (they said that). Because it would take multiple generations, your crew would have to be selected from a genetically diverse group of people, otherwise future generations could suffer from birth defects associated with inbreeding. This means forced "pairing" based on necessity and not considering things like emotional or mental compatibility (love not a factor). The crew would have to be screened for genetics, but also filtered against bringing onto the ship any viruses or any other health threat to their survival. Any localized "pandemic" could wipe out the inhabitants. Ill crew would have to have medical treatments or be quarantined or ejected altogether. The crew screening would also have to include psychological as well as physiological examinations. Only the strongest in both could be considered. The initial crew would need to be able to withstand isolation to the ship for the remainder of their lives, never to walk freely outside the confines of the ship, witness a non-virtual scenic view, sunrise, or walk on a beach. Subsequent generation "might" have an advantage in that area as never having experienced such things, may not have reason to miss it. Also there is inter-human conflict to consider. Their would need to be an unbreachable established command structure to avoid any possible command authority or conflict issue. Any "turf" battles could lead to "war" followed by extinction. They would have to have a renewable bio system capable of producing sustaining oxygen, water and food and removal of waste. The biosphere can never experience any disruption of output or annihilation would result. I think the radiation issue would be the greatest one. They could not design a ship with sufficient shielding against radiation or the mass would be too great to ever leave the gravitational field of Earth (reach escape velocity). The radiation dosage accumulation over time would cause damage to cells and genetic mutations and cancers. It could speed evolution to the point if there were any survivors to "arrive" at all, they might no longer even be truly representative of the human species. Rather than that, I think it would just kill them outright. We aren't going anywhere.

However ... All this assumes that the spacecraft needs to be occupied in order to populate a distant star with humans, but this is not necessarily the case. If we were able to create/print humans at that destination using raw materials at the destination, then the problem shifts to (1) transporting the necessary data (2) making (and possibly, raising and educating) the humans and (3) building the machine that can do all this back on Earth :)

Well, there is an opportunity when Gliese approaches our sun in about a million years. It will only be about .16 LY away. Visiting there would be a lot more technologically feasible, and there could be chaos from comets to incentivize humanity. The voyagers have only traveled about one light day away (.003 LY), but again, I can see there being a good chance to see if Gliese has any like Earth planets with the star heading towards us.

We are cavemen standing on the shore of the Atlantic wondering how the log we cling to can cross the ocean. In time, we will learn the concepts and technologies required to cross the oceans of space.

Definitely not going anywhere if the motivation is colonization and resources. We'd just tear up the new planet too.

...my belief is.. god intended us "humans" to remain on planet earth...all though we may "travel" to other planets (in the far off distant future)..we would never be able to live there...etc...

Let's focus on colonizing the Solar system first. This will present enough of a challenge for now. For Earth we need to work out how to get all the PFAS and heavy metals out of the environment as well as regulating the carbon in the atmosphere.

The nearest star is 40T km from the Sun! Us meatbags are stuck in the Solar system....

Our solar system gets a one star rating ⭐

I love that the video explains pretty thorughly the issue, and yet people are still here in the comments 'but...but just you wait'. It won't happen people. Also pretty sure people on mars won't happen in the next century if ever. (Which begs the question why you'd want humans on mars except to say 'cool we're here now what'). Advanced probes are the future of space exploration (if we do have a future). The further people will go is probably back on the moon, let's see if they can achieve that.

Disembodied spirits and imagination of the mind can already go infinitely further than any technology can.

Reaching light speed is already a challenge. How about how does one stop traveling at light speed?

The most plausible and saddening explanation to the Fermi Paradox : Interstellar travel and interstellar communication have NEVER been possible due to the laws of physics. Since the universe has stabilized, millions of civilisations have thrived, reached an advanced state then withered away, having depleted all their available resources, trapped in their own solar system, just as we are. These civilisations have built radio-telescopes to listen to the void, but to no avail. Artificial signals have always been, and always will be too weak not to fade away in the Oort clouds/gas clouds surrounding each star. Like we did, they built space station, reached their moon(s), maybe their closest planet, but that's all. Probes were sent, but were just too insignificant to be noticed, and died. And non, it does not contradict anything we witness now : No signals, no signatures, no structures, nothing.

I'm gonna have to disagree. If you go back a couple hundred years people would say no way man would ever be able to fly like a bird or go into the heavens yet here we are

I appreciate your no-nonsense, realistic approach to this topic.

If someone can dream it, we can make it real!! I know, 'cuz I saw it a CAD drawing. That's the world we live in, where people ignore physical limitations because of pretty pictures. Great video, but depressing as Hell... I guess since I'm stuck here for the foreseeable future, I better go back to work on Monday. I still think there's a possibility of people leaving our Solar System, because we like to prove we can do stuff. It'll likely end with them all dead, but there's plenty more were those came from. In the immortal words of Dr. Ian Malcolm; "Your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should."

I actually figured this, sadly, but Einstein had it figured out. Once an astronaut attains light speed, he just forever becomes apart of the background radiation. A very small part of it.

Australians and New Zealanders used to blame their isolation from other countries on "The tyranny of distance" but what humanity now faces is literally trillions of times worse.

One possible flaw in this argument is that in a few hundred years time technology could have been developed which is inconceivable to us and they may have managed to overcome the difficulties outlined in this video. After all if it was possible to travel back 300 years, explaining our current technology would be beyond the understanding of the people who would just dismiss it as black magic.

If Einstein is correct (time dilation), travelling to other destination at relativistic speeds would isolate the travelers not only spatially but also temporally, so maintaining an interstellar civilization as described in science fiction would be impossible.

I would never say never. If we went back 1000 we would think of most of the technology we have impossible. There are tons of difficulties with space travel. But i think progress will be made. Maybe not in 100 years but 1 or 2 thousand, i think it is possible.

So does this mean that Star Trek has just been lying to us the whole time. I am shocked.

What we really need to do is to keep human greed in check. Greed is the root all the other evils.

Hell men won't get to Mars, much less a star.

If we were to leave Earth, we would want to go to some pre-industrial Earth. All we have to do is find it and get there. Or we could try and save the Earth that is our birthplace and home.

Argh, the beginning of this sets up a completely absurd scenario of catastrophic climate collapse. All the evidence points to a great flourishing, greening of the planet and a future of plenty. If we want to leave the solar system it will be for exploration and adventure not because we're running away from something.

Many years ago, when science fiction series were so popular on TV, a good friend of mine waxed enthusiastic about living in a time when star travel would be common. Since I'd been a science fiction fan for my whole life, I had considered all the possibilities and come to the conclusions in this video. I told my friend that star travel would be impossible because the speed of light could not be exceeded and not even approached. He asked how I knew. I knew because of Einsien's equations and said so. Since he had no background in mathmatics he could not believe Einstien. "We just don't know enough to build warp drives yet", he said. So here was the roadblock that keeps galactic federation fans hoping. People who want to believe will find a way to make it seem logical even when it's not. The saving grace is that economics will prevent these misguided individuals from putting any eggs in that basket. Elon Musk does not belong in that group. It is our future to colonize the solar system but that will be economic only, not for survival. We have no need of alternate Earths. We have one and we will learn to take care of it. We will come to our senses before we create a black cinder of a planet and that would be the only thing that would kill our race. We will be spacefaring, just as Musk says. We just won't find a "Galactic Federation" to join.

We cant pee and poop our way through the universe. We are too resource dependent as a species. Our robots or androids might be able to do it.

In the novel "songs of distant earth" Arthur c Clark wrote a tale of slow moving ship carrying folks in cryo that comes across a planet with ppl on it. Turns out these folks were descendants of a ship built many years after first one that was much faster and didn't carry passengers. It carried genetic material to be combined with material from the planet it landed on. So they were truly native inhabitants. It's a great book. I recommend it 😊

We are terrestrial beings unable to survive outside our planet’s ecosystem. Mars has 1% the required atmosphere. The biggest threat comes from our star and our asteroid belt.

No idea on the propulsion system, but as far as the huge ship that never breaks down goes, the trick is not to start with a ship. Pick yourself a nice, solid asteroid, mine it out into all the compartments you need to feed and house a stable, genetically viable population, and send it on its way. Plenty more available resources to mine and make into any spare parts or upgrades you need. As an added bonus, it's even easier to slow down because it'll have less mass when it gets there.

"We Will Never Be able to Leave The Solar System And I'll Explain Why" That is true as long as we continue to use glorified bottle rocket technology.

I've realized for a long time that the only star I'll ever visit will be the one that visits the atoms which I was once made of - when it becomes a red giant.

So what you're saying is , space travel has no hope , and when that super volcano , or huge asteroid , or mega sunami or crazy human presses the nuke us all button, we have no alternatives we are just doomed like the dinosaurs ?

The telescope was invented 500 years ago. Since then we went from glass telescopes to the James Webb telescope. Now add a million years to that. We'll be able to see anything we want nearby.

So being in one place we risk extinction , when exactly was it decided that we were so damn important to the universe? I would venture to guess if we all went poof , gone , tomorrow no one would care much.

Cir,you are wrong .Star ship can make: speed light x 67000 times,ifbe gravitation - antigravitation technologies.

We humans are dreamers, and we simply stick to the old proverb: "Don't let facts ruin a good story"‼We keep on dreaming❣ 😌🚀🛰👨‍🚀👩‍🚀

For the sake of all life forms out there , I hope we never leave this solar system.

A lot of our limitations have to do with how unestablished we are in space, we have to build everything we take up there with launch considerations in mind. If we were building it all up there, we'd have a lot more wiggle room with what we could build the colony ship in orbit. Even without a star trek future its easy to imagine one where humans branch out.

Assuming time dilation occurs, the trip to anywhere at almost the speed of light would *not* be instantaneous to the crew. Time would progress normally for the crew, and they would take a little longer than actual light to get there (from their pov). From Their starting point, any observers would see them vanish into the distance as a short beam of light would - ie. they would essentially appear to disappear like when you turn a flashlight off.

Agreed- we are NOT getting off the Earth without the help of Others out there. That's reality.

True, compared to the technology required for interstellar travel, the technology to heal the planet would be orders of magnitude simpler. If we ever achieve that capacity, would be under an as yet un-conceivable physics and economic systems not yet even dreamed of, forget about investors.

dont ever say never a engineer will find away an only a fool would try to stop us

The existence of complex evolving life alone, shows that there is a strange something behind the secrets of the universe, and that life itself was “written” into its coding. I don’t tend to believe in a god but I do think life is supposed to be playing a part in the universe some how. Technology, especially looking at humanity’s tech tree, also gives me a feeling of we were supposed to discover these things. I have no doubts we’ll find what it is we need to be among the stars, to find our cosmic kin. The universe wants us to do something, i just don’t know exactly what.

I think a more basic reason is we human have not built mechanical devices that function that long. Once that spaceship loaded with people leaves Earth then it's on its own. No one can help those people deal with problems. Even if a rescue ship was called for and sent out, it might be years or longer before it reaches them. In an emergency situation, you can't wait years for help. One mechanical or computer or electrical malfunction could kill everyone on the ship. How long did it take before Space Shuttle deaths put the shuttles out of business? And those were just short trips.

This is the best, most realistic video on this subject I've seen. Looking for a new home planet in another star system is not the answer. Star Trek is not our future. I think we will colonize the Solar System, but that's not the answer either. We need to take better care of Mother Earth. Global population is plateauing, and that should help. Our best hope for traveling to the stars is for some of us to merge with the coming superintelligence which is the next step in our evolution. Maybe that is what will provide AGI with consciousness. And as you pointed out, an AI can take as long as it needs to explore the cosmos. A billion years is nothin to it.

Speed is not the ultimate problem. The issue is comparable to avoiding insects in a car. Its not possible to avoid them, space dust being the equivalent it guaranties mission failure as it would destroy the ship.

This topic reminds me of an anime. This issue came about when Earth began to go into a new ice age. To save humanity, humanity must venture into space. However, a concept among scientists to alter humans so they could live in space without technological aid. Then, two factions came into being. The humans who embrace technology and those who are genetic alter.

This declaration seems to be based on a lot of bold assumptions in this video. For instance, thinking that physics works the same across the entire cosmos, or that we'll never have access to higher dimensions of reality. We assert that light is as fast as things get, and it certainly is -- as far as we know -- or maybe that our technological progress will hit a brick wall someday, and no further advancement will be possible. A lot of this stuff seems to imply that the knowledge we have right now is as much as there is to know, when technologies that are just over the horizon could open up the entire universe (or even other universes) to us. Rather than just assume the rest of the universe is beyond our reach forever, I would counter with, the scientific knowledge and technology we have today does not allow us to leave the solar system, at least in the near future. But, by no means does that mean we will never have a solution a few decades, centuries, or millennia from now. All of our most advanced technological, scientific, and mathematical knowledge has only come to be over the past few hundred years. By all accounts, we're likely still well within our species' infancy when it comes to our understanding of the cosmos. I wouldn't discount humanity's ingenuity or drive.

When I was a kid, they said it was absolutely impossible to ever directly observe an exoplanet. The parent star was just far too bright. That has happened now. Never say never!

With this sort of negative thinking, of course we wont reach the stars! Those who are scientist or theorist like this channel who say its impossible will be impossible. Especially if we treat them all knowing entities like neil deGrasse or bill nye or this channel. Dogma...Curiosity is what going to drive us to explore beyond our solar system. Engieenuity is going get us there. When and how, i dont know. If i am going to guess, i will give it another 50 years when people make the first attempt to explore our nearest star... another note, i will agree that fixing our planet first is the first priority before we start leaving the solar system. If we cant take care of our own home, what makes anybody think that future generations will not end up destroying another planet as will.

At 99% the speed of light time would pass seven times more slowly than now. BUT only from an outside observer. For people on board time will pass normally. O