* In episode 103 of the podcast ''[[Hello Internet]]'' (31 May 2018) [[Brady Haran]] and [[CGP Grey]] discuss the reasons the number may be limited to 150 including the ability to keep track of political relationships in large groups of people and the amount of time that people have to devote towards developing and maintaining friendships.<ref>{{Cite web|url=http://www.hellointernet.fm/podcast/103|title=H.I. 103: Don't Read The Comments|website=Hello Internet|language=en-US|access-date=2018-12-23}}</ref> | * In episode 103 of the podcast ''[[Hello Internet]]'' (31 May 2018) [[Brady Haran]] and [[CGP Grey]] discuss the reasons the number may be limited to 150 including the ability to keep track of political relationships in large groups of people and the amount of time that people have to devote towards developing and maintaining friendships.<ref>{{Cite web|url=http://www.hellointernet.fm/podcast/103|title=H.I. 103: Don't Read The Comments|website=Hello Internet|language=en-US|access-date=2018-12-23}}</ref> |