 :Remembers me of a Calvin & Hobbes cartoon about time-travelling. Calvin I from the past has not done the homework, Calvin II from the present is not doing the homework and is together with Number II visiting Calvin III who is about to go to school. III suffers as none of the other Calvins has done the homework. And I have to say that the wikipedia has an enormous addictive potential and it happened that I wrote half the night for this Behemoth.  