Tweet round-up from the second half of #AAAI2021

You may have seen our tweet round-up from the first few days of the AAAI 35th conference on artificial intelligence. During the second part of the conference we've enjoyed further invited talks, interesting panel sessions, and workshops. In our second round-up, we collect tweets from Saturday 6 to Tuesday 9 February. I just had the joy of moderating a fascinating #AAAI2021 plenary talk by @prfsanjeevarora, "Opening the Black Box of Deep Learning". People are actually starting to understand dynamics of gradient descent; GANs; generalization; why LMs work.