I once had a HR consultant give a spiel about workplace conflict resolution, by playing a TED talk by some blatantly fraudulent con-man, of this famous puzzle.
She (the HR consultant) obviously couldn't count. And he, the TED talker, who represented himself as a diplomat engaged in nation-to-nation negotiations, is nowadays probably selling crypto.
Any time anyone tries to tell me about a good TED Talk,I tell them about this one.
