Are You Taking Usain Bolt to the Extreme?

In the new Pixar movie, Buzz Lightyear, a toy goes so fast that when he comes back, everyone else is like four years older, and he's the same age. Do you think we as humans would ever get to a point where our astronauts or cosmonauts would actually come back to Earth, quite like observably younger than their, you know, twins than their counterparts? So I think it's unlikely. But a way that you could possibly achieve it was by going and wandering off close to a black hole,. And if you do that, then you get a similar effect, but through gravity, even though gravity's fake.