Stop. Rewind... Possibility?

Could we pause? Maybe rewind a bit from this reality that we might call happiness? What would we do with this rewound information that now is in our heads. We know what's going to happen next, will we toy with it before we do something productive? Would we leave things as they are or maybe try and make the world better in small ways. I mean we should be doing the latter anyway as we're here to help and not to hurt. But what if we rewound a bad memory and made it good. Telling a friend something then rewinding because it looks like that friend got hurt. But then we'd get no real learning experience, would we? It hurts to be in this world but, dear friends, that's how it will always be until we learn to really live with ourselves and others.