Khosla, an investor in artificial intelligence leader OpenAI, was sceptical of Musk’s motives for signing the letter. “I 80 per cent suspect his call to slow down AI development was so he could catch up,” Khosla said. Musk, who recently incorporated an entity called X.AI, is already also working to develop AI robots and better AI technology for Tesla cars. ‘Elon is behind’ “Elon is behind,” Khosla said. “He realises AI technology is really important to him both in the Tesla car” and in robotics. Khosla also called out companies like Tesla and Apple for doing significant business in China…