andy-hughes
It appears that those who have answered so far are swapping themselves to 'be' someone else, which is pointless because you wouldn't know you are now someone else.
It would be pointless Talbot, because you are simply someone else - you don't know you are half the age of someone else again, because you don't know that you anyone different - that is my point.
If I am Mick Jagger, then I have no idea I was Andy Hughes, so it's meaningless, but if I am living Mick Jagger's life, then I am me, living how he lives - that's the difference.