Re: OOC 3
In another roleplaying game made by the whipping boy of the RPG community, White Wolf, the power to manipulate time wasn't "temporal manipulation" per se. Like McDonald's making hamburgers, that's what they do, not how they make money. McDonald's makes money from real estate.
Temporal manipulation is communion with the GM. Executed properly, and you gently parse out the limits of your own power within the game you are in. You accept it will not work the same way twice, particularly if the GM is different.
Mess it up, and you retcon yourself. It's more like being a priest than a wizard. You are asking permission of the cosmos rather than asserting it.
When NPCs use this kind of power, it is smoother and more efficient because they are already the tools of the GM. They are already fully in their power, and have no will or existence beyond the GM. They do not need to ask permission as we do, because it is implicitly granted by virtue of the GM having them do it.
PCs don't roll like this. We have to ask.
So, it is possible that in the Heroes Universe, the past is truly an insurmountable wall, and the best you can do is create another universe where you altered the past at a critical point. Or perhaps the attempt to go back simply makes you effectively deader than dead, or all energies and information shot into the past are converted into cosmic energy and dispersed. Or it could work as it sounds like.
All of this is what it is to mess with time in an RPG format. It's both extremely powerful and extremely limited at the same time.