Conversation

TED talks are to good sessions like airports are to homes. They are un-talks in the worst, most designy kind of way.
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Just seen a sponsored ad saying "Treat every lecture like a TED talk".

Do not do this. A TED talk is a scripted monologue. A real class is a two way communication of knowledge and you must be able to go "off script" if necessary.
https://twitter.com/AndrewR_Physics/status/1022157454426210305