The past is gone, the future is not yet here, and if we do not go back to ourselves in the present moment, we cannot be in touch with life.
Discussion
Many of the "human beings before" me are still alive. Something like 7% of all the people ever born haven't died, so your statement doesn't even pass a 95% reliability standard.
Ok, so that's a bit tongue-in-cheek, but it is interesting that such an obvious point is somewhat tricky to argue.