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Started By
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re: Paradox: How many ancestors did you have 1,000 years ago?
Posted on 5/6/22 at 1:38 pm to UndercoverBryologist
Posted on 5/6/22 at 1:38 pm to UndercoverBryologist
Inbreeding
1
Posted on 5/6/22 at 1:39 pm to saturday
Had at least two.
Posted on 5/6/22 at 1:41 pm to LNCHBOX
quote:
You're only looking it it for the age of having the first child for the mom. You have to account for multiple children from the same mom.
No I'm just giving a reference point. I think 30 is probably an okay number for much of the developed world for average age of women giving childbirth, although if you go back in time (which this math problem does) even that number for "developed" world is too high until the last few decades.
But for 2nd/3rd world I think it's still way too high even today.
Posted on 5/6/22 at 2:26 pm to UndercoverBryologist
You can't. You have to take into account wars, famine, plague, etc. that would extinguish many familial threads.
Posted on 5/6/22 at 2:39 pm to UndercoverBryologist
quote:
So, 2^40 or 10,995,116,277,756.
your math doesn't check out
2^40 is actually 1,099,511,627,776
This post was edited on 5/6/22 at 2:40 pm
Posted on 5/6/22 at 2:40 pm to UndercoverBryologist
3.50
Posted on 5/6/22 at 3:05 pm to UndercoverBryologist
Every person has 2 parents but not every set of parents has only 1 descendent.
Math also missed real life factors, like Wars, diseases, and especially alien abductions and zombie apocalypses.
Come at it from the other way and see if there was only 1 Adam n Eve or many sets of Adam n Eve…my math says Book of Genesis was written before math.
Math also missed real life factors, like Wars, diseases, and especially alien abductions and zombie apocalypses.
Come at it from the other way and see if there was only 1 Adam n Eve or many sets of Adam n Eve…my math says Book of Genesis was written before math.
Posted on 5/6/22 at 3:08 pm to Upperdecker
quote:
Inbreeding
Yep. OP and his wife are almost certainly blood relatives.
Posted on 5/6/22 at 3:09 pm to UndercoverBryologist
quote:
according to most estimates, only 250,000,000 or so people were even alive in AD 1000.
So, how do you resolve the paradox?
Well, if you can trace your lineage through Alabama, you can narrow an ancestral line considerably.
Posted on 5/6/22 at 3:09 pm to Turf Taint
quote:
my math says Book of Genesis was written before math.
Posted on 5/6/22 at 4:31 pm to Galactic Inquisitor
Blessed to have children with someone from another continent, but that’s probably worse on her side
Posted on 5/6/22 at 4:33 pm to LNCHBOX
quote:
All the people that share ancestors.
Yep. Adam and Steve.
Posted on 5/6/22 at 4:47 pm to Tacktheritrix
quote:
your math doesn't check out
2^40 is actually 1,099,511,627,776
Oh, well. Point still stands.
Posted on 5/6/22 at 5:31 pm to UndercoverBryologist
There's no paradox.
Your longterm family tree is shaped like a diamond, not a pyramid.
This article explains it, though there are many others on the topic if you want to search: LINK
Eta: Going back far enough, you could have 3 brothers in the same family who are all direct ancestors.
Your longterm family tree is shaped like a diamond, not a pyramid.
This article explains it, though there are many others on the topic if you want to search: LINK
Eta: Going back far enough, you could have 3 brothers in the same family who are all direct ancestors.
This post was edited on 5/6/22 at 5:32 pm
Posted on 5/6/22 at 5:41 pm to UndercoverBryologist
quote:
only 250,000,000 or so people were even alive in AD 1000.
People die over time and they also share ancestors.
Posted on 5/6/22 at 5:59 pm to UndercoverBryologist
quote:And your ancestral pool is a tiny fraction of those.
But according to most estimates, only 250,000,000 or so people were even alive in AD 1000.
Posted on 5/6/22 at 6:17 pm to LNCHBOX
A quick google search says 25-30 years for a generation and most saying 25 years
Have to remember we are only a few hundred year from women getting married in their teens…. And life expectancy for most that 1000 years was into your 30s
Have to remember we are only a few hundred year from women getting married in their teens…. And life expectancy for most that 1000 years was into your 30s
Posted on 5/6/22 at 6:30 pm to UndercoverBryologist
quote:
if you think of a typical generation time as roughly 25 years
There is the first major mistake. Generations 100, 500, and 1,000 years ago were much shorter on average.
Posted on 5/6/22 at 6:32 pm to UndercoverBryologist
1:05 pm.
a little early to be hitting the sauce huh?
a little early to be hitting the sauce huh?
Posted on 5/6/22 at 6:38 pm to jrodLSUke
quote:
There is the first major mistake. Generations 100, 500, and 1,000 years ago were much shorter on average.
Uh...how is that a “mistake”? If you make the generation times shorter, you just compound the issue even more. Now, in the same time span (1,000) you have 75 generations, rather than 40.
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