What do you think about H+ social movement, technical singularity ideas, about Ray Kurzweil, Eric Schmidt(Google's top-manager), Nick Bostrom, etc. What do you think about it?
If we complete H+ plan, we can get main technology to interstellar flight - immortality. In this case, we can traveling between stars during long time - including centuries, thousands of years, if required. Also, digital brain can use warp time technology like KSP
To watch long time travailing very bored, in digital brain in the flight can exist not in real time.