I've seen a lot of people fail at trying to prove the earth is round... and others fail at proving it flat.

I grew up believing the round thing and it's hard to imagine that idea being wrong, but anything's possible.

I think radio waves shoot out straight into space and dont bend (much). So, reaching places on the other side of the earth is difficult due to it's round nature.

But I havent tried it.

I guess airplanes dont fly straight over long distances, but instead adjust to the curvature of earth to maximize efficiency. But again, I just take this as truth, I'm not a pilot.

Sometimes I wonder if it matters to me at all.