“What are you going to do, work for my well-financed competitors?”
By 
How it started:
How it’s going, cont’d:
It seems worth noting here that non-compete clauses are generally illegal in California. And Elon is an excellent illustration of why this is good policy:
In a tweet posted after this story was initially published on Thursday, Musk wrote that “competition is fine, cheating is not.”
I dunno, when you define “cheating” as “hiring employees that I fired because I claimed that they had no useful skills” I tend question the sincerity of your commitment to competition.