http://www.netconceptions.com <http://www.netconceptions.com> , and stating
to see something odd. I know that the number of ancestors a person has for a
particular generation doubles from the previous generation's number. So at
the 4th generation back from me I have 8, and the 5th I have 16 and so on.
Which leads to this. You can tell the number of ancestors you have for a
generation by taking 2 to the (generation number minus one) power.
This is all fine and dandy, but after a certain point it becomes more and
more improbable that say after 49 generations which is about 1500 years I
would have 562,949,953,421,312 ancestors in that generation.
So what gives. Is the math suspect? Is there an inbreeding curve? Even if
you account for like 50% cross-ancestral breeding, that still leaves a huge
number of people anyone is descended from going back that far. This must
take into account the number of people on earth for the whole generational
period in question.
Anyone?
John
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