Why do some people have likely shared DNA go further back then mine?

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in WikiTree Help by Logan Gavin G2G6 Mach 1 (18.1k points)

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Further back in generations, or further back in time? The autosomal DNA should propogate back the same number of *generations* for everyone (up to 6xgreat-grandparents, I believe), but different families and lines have different generation lengths. And of course, you can usually get further into the past testing someone born in the 1940s than you can testing someone born in the 1990s (part of why it's recommeded to test your parents or grandparents if they're alive).
by Sharon Casteel G2G6 Pilot (111k points)
selected by Logan Gavin
Ohhhh I see. I couldn't quite wrap my head around the fact that some generations "move faster". For example, there was a cousin on Wikitree that I found and their 2nd Great-Grandfather is my 6th Great-Grandfather

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