In this EA Global: London 2017 talk, Ajeya Cotra goes through a number of tangles that have come up trying to translate cause prioritisation theory into practice at OpenPhil, some proposed patches, and remaining open questions. 

In the future, we may post a transcript for this talk, but we haven't created one yet. If you'd like to create a transcript for this talk, contact Aaron Gertler — he can help you get started.