A human can still tell that they are inclined because of our natural balance. Our ear will tell us that we are being pulled slightly to the side.,(reply>), no defnitifly not. fly upside down and pull up you dont know that your upside down,(reply>)," <a href=""https://www.youtube.com/watch?v=kjQLT5CKEAU&amp;t=1m00s"">1:00</a>"