Part of me wants to toy with creating a Chronomancer, but the majority of me knows that's creating hell for any GM and probably forcing more mechanics that were never intended. So I will likely go another route.
Time travel would have a duration of infinity so is impossible. Most other sorts of manipulations of time (speeding it up in one place) would have a size that would be infinite (go go gadget entanglement), as really you're manipulating all of space and so would be impossible. It'd also generally violate the realism rules as time travel is impossible, as is manipulation of the speed of time. Sorry, it's true.
