[icedchai]

Where's "10 or so years" come from? Proxima Centauri is over 4 light years away. At 10% light speed, that's ~40 years minimum. At 1%, over 400 years. We'll ignore any time needed to accelerate and decelerate. It's a long time. I hope someone still remembers the project exists.

[Nevermark]

Ok yes, thanks. 4-40 decades, so 40-400 years, as you say.

Likely 40 years eventually, for the first trip, because no point sending a craft that takes 400 when waiting results in tech that takes 40.