I learned about this in the book Algorithms to Live By. They talk about it in the context of dating; How do you know if you've met the right one? IIRC you have

I learned about this in the book Algorithms to Live By. They talk about it in the context of dating; How do you know if you've met the right one? IIRC you have to go on x amount of dates knowing you won't commit to this person. The book has an interesting way of looking at life, recommend.