I read in physics that it is impossible to get at the speed of light b/c it requires infinite force and I HEARD that if you do you can go to the future and if you cross it, you go to the past. Now I am having problem understanding the HEARD part. I mean what makes you reverse or accelerate entropy? btw, they were talking about some objects that nevertheless do travel faster than light. I think one of them was photons and then there were some that havn't been proven to exist. Do any of you guys know what were they?