Nut job talking shit.So the bald **** in the video is just a nutjob and is talking shit or does he have a point?
If it is just a plain surface, show me the fucking edge right now so I can happily walk off the edge and die
In terms of the physics a much better question would be why the Earth is round. In fact why are all planets and all stars mostly round? Gravity is of course the answer but then again what is gravity?
Gravity is a posh name for acceleration.