I googled the amount of people that lived on earth throughout its entire history, it’s roughly 108 billions. If I take 1 person and multiply by 2 for each generation of ancestors, at the 37th generation it already outnumbers that 108 billions. (it’s 137 billions). If we take 20 years for 1 generation, it’s only 740 years by the 37th generation.
How??
(I suck at math, I recounted it like 20 times, got that 137 billions at 37th, 38th and 39th generation, so forgive me if it’s not actually at 37th, but it’s still no more than 800 years back in history)
In: 1391
>I googled the amount of people that lived on earth throughout its entire history, it’s roughly 108 billions. If I take 1 person and multiply by 2 for each generation of ancestors, at the 37th generation it already outnumbers that 108 billions. (it’s 137 billions). If we take 20 years for 1 generation, it’s only 740 years by the 37th generation.
>How??
There’s only ever a limited amount of possible mates for any person at any point in time, no matter their geographic mobility. The further you go down (…up?) the tree the more of all those people will simply be **the same person**. I.e. your great-great-great-great-great-great-great-grandfather on your great-great-great-great-great-great-grandmother’s side will also be one of your great-great-great-great-great-great-great-*great*-grandfathers on your great-great-great-grandfather’s side and so on.
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