Conditional on civilization launching one or more von Neumann probes by 2200 that will reach another solar system within 100,000 years, what will be the average speed of the fastest one, in c (> 1)?
Conditional on civilization launching one or more von Neumann probes by 2200 that will reach another solar system within 100,000 years, what will be the average speed of the fastest one, in c?