We all have 2 parents 4 grand parents 8 great grand parents and so on. If we assume 30 years per generation then 1000 years is approx. 30 generations. The answer you get is way to high. What is wrong?
2006-08-23 12:30:08 · 4 answers · asked by Rolf H 2 in Science & Mathematics ➔ Mathematics
You are forgetting about tree merges. It is not a pure binary expansion.
try a merge multiplier b
if there are no interdependent merging, b = 1.0
if there is a small amount then b = 0.99
if there is a lot then b = 0.9
n = (2b)^30
(2)^30 = 1,073,741,824
(1.98)^30 = 794,247,228
(1.8)^30 = 45,517,159
A merge multiplier models a phenomenon where distant relatives procreate (probably unknowingly), and the distant part might mean 10 generations or more, or just 1. The merge multiplier just models all of that in simple mathematical terms.
2006-08-23 12:34:00 · answer #1 · answered by none2perdy 4 · 1⤊ 0⤋
I am a genealogist and I would not dare to calculate that given the fact that in my own research I've seen generations average anywhere from 18-45 years. So that would make the number different for every individual calculating it.
2006-08-23 19:32:53 · answer #2 · answered by genaddt 7 · 0⤊ 0⤋
When you go back far enough, you start finding ancestors who were parents of more than one of your progenitors. The farther back you go, the more common ancestors you will find. It is probable that almost everyone in Europe had William the Conqueror as an ancestor.
2006-08-23 20:03:56 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Inbreeding. Some of your ancestors appear more than once on your family tree.
2006-08-23 19:33:38 · answer #4 · answered by Anonymous · 0⤊ 0⤋