? In the length of time measured as human lifetime one can expect to see a full range of differing events. It is assumed that during a lifetime a person will experience every possible different emotion. If one is particularly lucky, he will bear witness to, or affect some momentous change in humanity. However is it reasonable to ask what would be experienced by someone who lived two lifetimes? Up until recently the previous question would and could only be rhetorical. There is no answer, because no one has ever lived that long. Of course that ....