I may not consider someone a friend, but still know they do. Imagine the case of people that make "friends" to abuse them or steal information. Note that it doe

I may not consider someone a friend, but still know they do. Imagine the case of people that make "friends" to abuse them or steal information. Note that it doesnt stop them from feeling the friendship is fake and faking that themselves. You see patterns like that in spy stories with double or triple agents. Not sure how many recursions a human brain is able to handle on an everyday basis, I would guess between 2 and 4?