Comment by dyauspitr
You can accelerate continuously at a comfortable 1g and get to 0.5c in about 5 months. G forces are not the issue.
You can accelerate continuously at a comfortable 1g and get to 0.5c in about 5 months. G forces are not the issue.
The Lorentz factor at 0.5 c is 0.86 so this only reduces your proper travel time by about 15%. Even at 0.9c the LF is only 0.43, so it would still take you 2 years just to get to Proxima Centauri. And as you approach c, 1G acceleration speeds you less and less. And you also have to slow down at your destination.