Kind of OT but since this is a thread about fiction books, I read a very interesting short story on HN but can't remember the author or the title. It was about

Kind of OT but since this is a thread about fiction books, I read a very interesting short story on HN but can't remember the author or the title. It was about a person who meets god and then finally realizes that every person he has met on earth is his past self (or incarnation?). Anyone know that one? Also any good recommendations for similar short scifi stories?