The suggestion is sound, however: mathamatics kill it. This would work easily with a small tree that did not span a great period of time. My trree goes back to BC (with at least one weak link). Many people hva tracked their ancestry to the Roman Empire, and when that is accomplished much of the Roman history is well recorded and takes you back to BC. If you were to begine at that point and went forward the number of decendants will be astonomical. Millions if not a billion. I can carry six glasses in one hand to the dishwasher, but I would need help with twelve, twent four , or fourty eight