Some heavy hitters on the signatory list: Jeff Dean, Yoshua Bengio, Volodymyr Mnih, Ilya Sutskever, Geoffrey Hinton, Chelsea Finn, Sergey Levine.<p>Would like to see Demis Hassabis and David Silver join the effort.<p>If Deepmind, OpenAI and Berkeley (well represented here) all boycott, that's a huge chunk of key AI researchers.