- Two conditions are important to organically develop a friendship - Continuous unplanned interaction - Shared vulnerability - These are much more likely to occur in college or school settings and much harder in adulthood. ---- "Why it’s so hard to make friends as an adult isn’t rocket science. Dr. Marisa Franco, a psychologist and the author of the book Platonic: How the Science of Attachment Can Help You Make—and Keep—Friends, described what it takes to Boston radio station WBUR. There are basically two conditions that need to be met for people to develop a friendship “organically”: “continuous unplanned interaction and shared vulnerability.”" - [Link](https://www.esquire.com/lifestyle/a61536364/one-friend-in-one-month/)