[pjmlp]

Yeah, I smiled when I read "Just over four light-years" as if just around the corner kind of thing.

It might be just around the corner in space travel time, but those are quite a few light years still.

[TheLarch]

Also no one knows how to shield a spaceship from the interstellar medium https://en.wikipedia.org/wiki/Interstellar_travel#Interstell... over such distance.