VGC writes: "Imagine if you will, that tomorrow when you wake up, you possess the ability to alter your past. You accidentally overcook breakfast? Not anymore, simply open a small portal to the past and take the pan off of the burner so that breakfast was never burnt to begin with. Later at work you then accidentally spill your ridiculously hot coffee all over your keyboard. No problem though, as you can open a portal to the past and move that coffee to a shelf that is nowhere near arm's reach. But let's say you really go off the deep end this time and happen to carelessly sideswipe a pedestrian during your speedy drive home from work. Once again, didn't happen, you quickly open a portal and move the once blindsided pedestrian out of harm's way."