The relativity of time is not just a reason we cannot "travel in space and make it back", it is a utility that can be used to preserve the subjects to travel in FTL speed or even a beam me up scotty wormhole and calculate a journey back to skip time whilst preserving their own biological clocks. In other words indeed a person that is 25 in 2025 may go to another place in space through FTL travel and come back only to see the Earth is gone despite still being 25 years old biologically, but in the same manner if the journey is calculated the subject can effectively skip time for a set period of hundreds of years and if there is hope in development may return to live and benefit from the fruits of it in the future's availed life extension technology if humanity proves successful in not destroying itself, if it does destroy itself. It is effectively time travel into the future and thus any persons who wish to see if the species will succeed and live to see it or live to see if it has been insufficient and unworthy they may be able to do that through space travel. We currently do not possess FTL travel or wormholes, but it is simply the easiest way to be able to time travel into the future. With the development of AI a ship could be able to decide its own course and trajectory safely and be able to calculate how to return, all that is needed is research on the method for propelling and the type of energy consumption and materials needed to be able to initiate FTL, to which particle accelerators may hold an answer to that.
>>2550494>if it does destroy itself. Forgot to finish this line, if it does destroy itself the subject can just kill themselves since the species proves to be unsustainable and ruins the planet alongside itself.
>>2550498And maybe propel themselves into a random direction in space so that something might find their remains to reverse engineer if other sapient life forms or thinking things exist.
>>2550545crewmate is unhappy on the second image cuz hes returning to a ruined world like burnt and shit from a nuclear war or something
while hes happy on the first cause they built some kind of advanced megastructure which shows they're still living and developed
Imagine having the energy and the technology to accelerate a manned spaceship to relativistic speeds and travel to other stars and visit alien worlds that no one has ever seen before, but all you want to do is take a round trip to Earth 100 years in the future to find a cure for your ED.
>>2551111The nearest good things you can travel to are to far too make it back in time for earth to possibly be intact, it just needs to be advanced enough to get to a point where time can be quickly passed.
>>2551165
Space habitats
>>2551163And that's far more likely to get to than a journey farther.
Plus this illustration says
>>2550545 1000 years.
And yes, living forever is the greatest thing compared to visiting lifeless planets and stars we can already see. The only planets that can possibly harbor life would require us to change or physiology and biology to able to live to get there.
I volunteer to take this gamble of possibly returning to see a dead earth.
>>2551166Or we turn the earth into a spaceship using its core and build a giant thing like on the first drawing
>>2550545 to drive it. IMAGINE THAT.
>>2551168All consuming Matryoshka world
If you could actually do this, it would probably be the worst thing you could ever do. You already feel lonely and alienated and overwhelmed by reality right here in your own time, going a hundred years into the future is only going to make it worse.
>>2551175no? fuck off? I wanna live forever and you suck uygha. you suck uygha balls.
>>2551178Someone give me my MENSA certificate, I'm patenting this. I call it EPR - Earth Propelling Rods
>>2551175you'd become a micro-celebrity and would be able to grift off that forever and become a content creator talking about what the distant past was like
>You go to Alpha Capricorni and back at 0.9999 C. When you return 220 years have passed on Earth. When you left you were only 25 but you from your perspective 30 years have passed and you are now the ripe age of 45. You can see from orbit space elevators and mega cities. A lot has changed. You get on the radio and try to contact NASA. No response. After months of broadcasting your message you finally get some static and between the crackles you hear a few words. Knee-How. Knee-How. What could it possibly mean?
Travel to 2050 when China reaches communism
I love your imagination anon. This is great
There's some things you are getting confused about relativity, like you don't go to "FTL speed" to experience the effects of time dilation, it happens at real life physically-possible speeds with no need for hyperspace/wormhole magic or any other bullshit like that. Furthermore, relativistic time dilation doesn't make you age more slowly and is not a method of achieving immortality - from your perspective on the spaceship time is still moving at normal speed and your body is still aging just as it always does, time is just slowing down for you relative to everything outside of the spaceship. It's called "relativity" for a reason, you know.
Also, if you just want to preserve yourself and wake up in the future it would make a lot more sense to just use cryogenics, the already existing technology that is designed for that very purpose, rather than an interstellar spacecraft?
>>2552514/thread
Except it would probably be easier to get to speeds where time dilation is noticeable than get cryogenics working good
>>2552759Do you realize how much energy it would take to accelerate a macroscopic object to relativistic speeds? You have to remember that this is not a linear formula; as an object's velocity approaches the speed of light, the object's effective mass approaches infinity and so it requires progressively more energy to accelerate it. Consider how much energy the Large Hadron Collider uses just to accelerate a few protons to relativistic speeds and imagine how much energy it would take to do that with a manned spacecraft. Only a civilization that could harness the energy of matter-antimatter reactions or harness the entire energy of a star would be able to do something like this.
It's a lot easier to just freeze someone. You drain all the blood from someone's body and replace it with a special cryonic fluid which is sort of like a biological antifreeze, allowing the body and its tissues and organs to be frozen at cryogenic temperatures without destroying it with water ice crystals. We've already successfully vitrified and revived human embryos with good survival rates and there are currently a few hundred people in cryonic suspension right now who might be revived at some point in the future. And unlike the time dilation spaceship idea, cryonics actually preserves the body and stops the biological aging process, the person is exactly the same age when they are revived.
If you wanted a really foolproof method of travelling to the distant future, you could combine cryonics with space travel by constructing a cryonic storage facility in a deep crater at one of the moon's poles and storing frozen humans there. The moon has almost no axial tilt so there are deep craters at the poles which are never exposed to sunlight, only reflected Earthlight and cosmic background radiation. The bodies would be stored in sealed coffins and buried underground and they would remain preserved at cryogenic temperature indefinitely without the need for any active maintenance. So even if civilization collapsed or the planet were destroyed by nuclear war or something, the bodies would remain preserved on the moon, still able to be recovered and revived by some future spacefaring civilization, which may or may not be human. You could potentially be revived billions of years in the future and find yourself in an alien world with alien lifeforms so incomprehensible to you that it would basically be like waking up in Hell and being trapped and alive and suffering in that horror for the rest of eternity. That's what you get for trying to be God and live forever.
>>2552514>>2553291>cryogenicsYeah right, and then the cryogenics company goes bankrupt and throws your body out into a landfill. LOL.
You seem to have completely missed OP's point, time relative to a point in space, be it another planet to stay on or moon with the combined time of the journey to travel and come back from would pass differently for the subject than it would here back on Earth. Watch interstellar.
test
>>2553830didn't that cryo company mega fuck up a bunch of its people like chopping their heads off without consent and let bodies rot and other shit
>>2553830It's been a while since I watched Interstellar and I don't remember it that well because I thought it was a stupid cheesy movie, but IIRC the time dilation they experience in Interstellar was from being on a planet orbiting very close to a rapidly spinning black hole's event horizon; it had nothing to do with the wormhole they passed through to get to the alien planet. A traversable wormhole is just a shortcut, making a line that is "straighter than straight" so to speak and circumventing the speed of light barrier by physically making the distance between the two points shorter by severely distorting the fabric of spacetime. This doesn't involve any FTL magic and does not violate causality because the two endpoints of the wormhole are in the same reference frame. Lets say we figure out how to build a stable traversable two-way wormhole between our solar system and Alpha Centauri, which is 4.3 lightyears away. This means that when you go through the wormhole to Alpha Centauri, you will have effectively travelled 4.3 years into the future. To an observer watching from the Sol side, your spaceship would simply vanish and it would not reappear at Alpha Centauri until 4.3 years later. From your perspective you would arrive at Alpha Centauri instantaneously but when you observe Earth you will see it as it was 4.3 years in the past because that's how long it takes for information to get there without the wormhole. There would be no time dilation or violations of causality and only through the wormhole could communication between these two locations be possible, not through normal space.
There's different schools of thought on this, and wormholes are purely theoretical sci-fi plot devices more than anything else, but I think that if stable traversable wormholes could exist, the two endpoints must by necessity exist in the same reference frame, otherwise the tidal forces between the two asynchronous endpoints would obliterate both the wormhole and any object or information attempting to traverse it. The wormhole must be a static and perfectly synchronized connection between two fixed points in spacetime, it could only exist for a very short time and would require enormous amounts of energy and probably some form of exotic matter that has negative mass to create and maintain a stable traversable tunnel for long enough to allow an object to pass through and reach the other side.
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