AI researchers debating on Twitter

Recently some hot Twitter debates/discussions from a few top researchers in the AI community:

Gary Marcus vs Yann LeCun on end-to-end deep learning vs symbolic AI: https://twitter.com/yudapearl/status/1071912704313413632 (+ Judea Pearl on causality)

Blake Richards + Konrad Jording vs(?) Dileep George: https://twitter.com/yudapearl/status/1071702641309175808 (+ Judea Pearl on belief propagation)

David Ha (i.e. @hardmaru) + Alexander Lavin + Julian Togelius with interesting comments on brain-inspired AI: https://twitter.com/hardmaru/status/1072125703733370885 (following a Surya Ganguli article)

and color commentary from Adam Calhoun: https://twitter.com/neuroecology/status/1071914468932751360