🚀 go-pugleaf

hefeng@cz3.nus.sg wrote:
> 
> Hi! I've got a question here I don't whom I'd ask.
> This is a commonsense question so I guess it really doesn't matter.
> Anybody should be able to answer it.
> Now: a normal person has two parents, and four great parents, and 8 great
> great parents, and 16......
> therefore whenever we trace back one generation, the number of our
> ancestors doubles. But if we go back the years, the population decreases!
> Therefore there will be a time when the no. of one's ancestors equals the
> total population! and after that, even greater!
> This is nonsense. But where did I go wrong?
> pleas send your email to : e904952p@hjc.edu.sg
> -----------------
> He Feng
> e904952p@hjc.edu.sg


  I think there's one thing you may have overlooked.  In your
calculations, you are assuming 2exp(g) DISTINCT ancestors since g
generations.

  I have a felling that the further you go, the more "crossbreeding"
must be taken into account (or something like that).