> Flat earth is an interesting case in point. It is actually quite challenging to show that the earth is round in a way that does not require you to take anyone

> Flat earth is an interesting case in point. It is actually quite challenging to show that the earth is round in a way that does not require you to take anyone's word for anything. There's a Netflix documentary called Behind the Curve (2018). There's a guy who keeps running these experiments to prove the earth is flat. But keeps inadvertently proving that its round!