When I say 4 years, I mean 4 years to an outside viewer. Say that you had to travel to Alpha Centauri in less than a week because a friend of yours who lives on Alpha Centauri needs lifesaving medication. Sure, for you it would be instantaneous, but your friend has been dead for over 4 years. It makes things like communication nearly impossible.
Yes, but say your buddy Dave, also aboard the starship, decided not to do that. Whoops, looks like your buddy Dave died sixty-seven years ago. Oh, also, your home world was destroyed by some wizard with a bad case of asthma. Point being, a lot can change in a hundred years.
Alpha Centauri is 4 light-years away, right? And a light year is how long it takes light to travel one year. So traveling at the speed of light, it would take 4 years.
What have we become
MysteryMystery305 OP t1_j1160z3 wrote
Reply to comment by kernal42 in How would we get about traveling through deep space? by MysteryMystery305
When I say 4 years, I mean 4 years to an outside viewer. Say that you had to travel to Alpha Centauri in less than a week because a friend of yours who lives on Alpha Centauri needs lifesaving medication. Sure, for you it would be instantaneous, but your friend has been dead for over 4 years. It makes things like communication nearly impossible.