Question

how a 4D would look, if a man travels in a 4D world how would he be looking?

Answer 1

however, is a man who sculpts in 4D. His chisel is programming code. The statue emerging from his block of marble is a video game called Miegakure. It is a game that might accomplish a task other than the ones people think games are capable.

Answer 2

a four dimensional space or 4d space is the simplest possible generation of observation.The 3d space is in relation to length,depth and height. The forth dimensions is in relation to that three dimensions like vertical dimention.
hope it helps u....