Tesla CEO Elon Musk and cosmologist Stephen Hawking endorsed a new pact this week to keep the robots from rising up. Musk and Hawking signed the “Asilomar AI Principles” on Wednesday as part of an effort to keep artificial intelligence from ending humanity. The principles, created by the Future of Life Institute, refer to AI-powered autonomous weapons and superintelligent machines that will eventually outsmart humans. Join the conversation: Follow @SVbizjournal on Twitter, "Like" us on Facebook…