magic eraser

i want to work on an eraser... funny? yes, because it is not the ordinary eraser that we use to erase a pencil mark from a paper, or a concealer that we apply to hide our dark circles (well, mine are soooo deep that there is no concealer that can work, not that i have tried any)...
the eraser i want to work on will erase events and their memories from the paper of time... the moment we have something that has happened which is not desirable, we merely erase it from having happened so well that not only do we strike out the event, but also the associated memories...
what this implies is we can fiddle around with time...
how happy could we be if that happened? i would erase the memory of growing up, all the pangs, all the trials and tribulations, go back to cradle and refuse to grow up...
in fact, it will come with multiple options of what one wants at any point of time and we could adjust it to suit our moods and fancies... as many moods, that many options; as many people, that many versions... id God listening? or is Darwin aware that such a thing could be done... well some may want to go back to the ape stage too:))
what a circus would we end up in? will it be worse than the one we are already in? or better?