In this EA Global: San Francisco 2015 talk, Robin Hanson challenges members of the effective altruism community to consider whether altruism is actually anything more than social signalling, and to notice our social biases around our altruistic endeavors.

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.