As for me, I would have pause button instead of rewinding all the time the moments I want to change. The reason why I prefer to have a pause button is that I really like to learn on my own mistakes. I am the one who likes to see the result of what might happen instead of cleaning and rewinding my past.

It may seem unusual because I know that most people would like to have a chance to rewind their mistakes or a parts they don't want to remember. Even if they rewind that parts, that will not help them to forget about those moments. Stupidly to try to erase or delete something that is already done and left a scar in your life. Better to learn on that mistake (s) and try to never do it again.

Every one ever did a mistakes in the lives no matter what size they are. We do it every day, in every hours, minutes, or seconds but the most important is to see and realize them. So, to pause some moments, stop and think immediately very deeply of what may happend at the end is our main goal.

That is why I think that pause button is better than rewind one. We don not need to afraid of doing mistakes, we just need to learn to avoid of doing them.