What life could be like for civilizations 1 trillion years from now
1–10 of 168 posts
Re: What life could be like for civilizations 1 trillion years from now
#2I think tools 1 trillion years from now that stumble across that headline will wonder what humanity was.
Re: What life could be like for civilizations 1 trillion years from now
#3all stars outside the Local Group of galaxies will no be accessible to us since they will be receding away faster than the speed of light.
Can anyone explain what this means?
Re: What life could be like for civilizations 1 trillion years from now
#4all stars outside the Local Group of galaxies will no be accessible to us since they will be receding away faster than the speed of light. Can anyone explain what this means?
There is a theory that the universe is expanding faster and faster. At some point in the future, stars would be moving away faster than the speed of light and we couldn't ever see them again or reach them.
Re: What life could be like for civilizations 1 trillion years from now
#5all stars outside the Local Group of galaxies will no be accessible to us since they will be receding away faster than the speed of light. Can anyone explain what this means?
the universe is expanding and the expansion is accelerating
Re: What life could be like for civilizations 1 trillion years from now
#6all stars outside the Local Group of galaxies will no be accessible to us since they will be receding away faster than the speed of light. Can anyone explain what this means?
There is a theory that the universe is expanding faster and faster. At some point in the future, stars would be moving away faster than the speed of light and we couldn't ever see them again or reach them.
How could they be moving faster than the speed of light?
Re: What life could be like for civilizations 1 trillion years from now
#7Isaac Arthur made a compendium called Civilizations at the End of Time [1] that goes into this territory. This guy, in my opinion, goes above and beyond even your typical hard scifi. Can't recommend highly enough.
[1] https://www.youtube.com/watch?v=p58yFf7aZsM&list=PLIIOUpOge0...
Re: What life could be like for civilizations 1 trillion years from now
#8all stars outside the Local Group of galaxies will no be accessible to us since they will be receding away faster than the speed of light. Can anyone explain what this means?
The first few paragraphs of https://en.m.wikipedia.org/wiki/Expansion_of_the_universe do a reasonably good job at describing what I assume is the source of your puzzlement (namely how can something recede faster than the speed of light)
Re: What life could be like for civilizations 1 trillion years from now
#9Earlier quoted context omitted.
There is a theory that the universe is expanding faster and faster. At some point in the future, stars would be moving away faster than the speed of light and we couldn't ever see them again or reach them.
How could they be moving faster than the speed of light?
And if they can, why can’t we and catch them? I mean we are in spacetime. If it stretches we stretch too!
Re: What life could be like for civilizations 1 trillion years from now
#10Earlier quoted context omitted.
There is a theory that the universe is expanding faster and faster. At some point in the future, stars would be moving away faster than the speed of light and we couldn't ever see them again or reach them.
How could they be moving faster than the speed of light?
Anything which moves through space-time is restricted to moving at the speed of light. Space-time itself can warp causing objects to "move" away from each other faster than the speed of light.
Think of ants crawling on the surface and a balloon which is being blown up.