@Brendanjones @ironchamber @u24 I mean, 3 generations back from you. Your parents, grandparents, and great-grandparents.
I don't buy the 7-generations-ahead thing. Barring extreme life extension or very bad decisions among your descendents, you won't meet anyone even 4 generations ahead. Thinking you know what's right for 3 more generations after that seems hubristic.