So have I and I came across those ideas first from his talks on Youtube not his writing. He talks about this ideas constantly so I don't know if these are the

So have I and I came across those ideas first from his talks on Youtube not his writing. He talks about this ideas constantly so I don't know if these are the best examples but: 1. About evidence for how language for communication is inefficient: https://www.youtube.com/watch?v=xyXqXfg-Dq4&t=3354s https://www.youtube.com/watch?v=xyXqXfg-Dq4&t=3354s 2. About the sudden appearance of language: https://www.youtube.com/watch?v=JTGoYXx0Kew&t=1557s https://www.youtube.com/watch?v=JTGoYXx0Kew&t=1557s 3. Arguing with a biologist about the evidence for language being for thought (and a little bit at the end about how hierarchical structure is inefficient): https://www.youtube.com/watch?v=TzzuPMA8s7k&t=307s https://www.youtube.com/watch?v=TzzuPMA8s7k&t=307s