>>13425496I used to think this way, but these things you call paradoxes are not paradoxes when you're really treating time as a dimension.
If I have a ball and I move it from one room into another, is that "impossible?" If it is true that the ball cannot leave room A to go to room B, then sure it's impossible. But balls CAN move spatially and as long as they're not in both rooms at the same time, there's no conflict.
Temporal movement is the same way. If things can move forward through time at different speeds, then they can certainly move backward, and the thing that governs the ease with which that can be done is the mass of the object. A human being, matter of any kind, simply has too much mass to move backward. Something with extremely low mass like a neutrino could easily be made to have negative mass and could be sent back.
If you tried to send a person, it would be very difficult to knock all of the Higgs Bosons out of the protons that make up the atoms of their body and even harder to prevent re-accumulation of the field. With neutrinos, we achieve that using high rates of spin, but the fact is that solid matter would come flying apart if you ever inverted their mass, the whole mechanism of the atom would come apart and would have an anti-matter/matter reaction on top of it, creating spectacular explosions on both sides of the bridge.
You will just have to be happy with your magical machine that shows you the future for now.
