Tangentially, one time I read the question “at what point are you functionally not related to your ancestors anymore?” I knew my great grandparents until their

Tangentially, one time I read the question “at what point are you functionally not related to your ancestors anymore?” I knew my great grandparents until their death when I was 18. My great great great grandparents would potentially view me as “their” descendants but I wonder how much further. Going back 8 or 10 generations means there are so many descendants (thousands?) that the relationship is meaningless.