Isn't Relativistic time dilation a problem for this idea? To the probe, the trip is only a few centuries but to us on Earth, millions of years. Maybe 0.1c isn't enough to cause this to be a huge problem but I think it is. Perhaps one of you Einstein enjoyers can tell us for certain.
Time dilation is 1/sqrt(1 - (v/c)^2). So at 0.1c that’s 0.5%. Certainly much higher than any human has ever experienced! But not exactly gonna change 100y to 100,000,000y.
No need to be snarky and especially not here re basic science. Time dilation happens exponentially, ie with 0.5c you don't have time going 1/2 slower, rather a miniscule amount. Once you keep approaching speed of light closer and closer, all things go extreme (time, energy required, mass and so on).