evidence: "A lot of people are turned off by the phrase 'flat earth' ... but there's no way u can see all the evidence and not know ... grow up," he previously tweeted, and then deleted. B.o.B claimed that if the Earth was indeed curved, we would see that curve on the horizon. [...] "All our physics is constructed now, the physics of orbits of things going around the earth is all constructed with this three dimensional world. And the pictures from space show our world as a globe and yet somehow there are some people that still seem to believe the earth is flat."