If you’re looking for a parking spot but the lot seems mostly full, your best bet, says computer scientist Brian Christian, is to “take anything starting 69 spots away” from the front of the store.

Christian is the co-author of the book “Algorithms to Live by: The Computer Science of Human Decisions.” In it, he explores how the algorithms used in our machines can be used to help organize our everyday lives, from navigating crowded parking lots to finding a spouse. 

Click the audio player above to hear Kai’s interview with him.