https://www.cnet.com/tech/tech-industry/calif-supreme-court-...
https://www.cnet.com/tech/tech-industry/calif-supreme-court-...
All I'm saying is that you get well past the Google IPO before it becomes broadly accepted that noncompetes are invalid in California, which certainly rebuts the idea that Silicon Valley succeeded due to a lack of noncompetes. (Noncompetes are mostly very bad.)
I do agree that the NLRB should go on an advertising campaign to inform employers that previous employers threatening legal action basically have no basis in law and you should just send them a reply saying 'No thanks'. Because that's what you should do in virtually all circumstances.
When people say "Silicon Valley succeeded," they're talking about Silicon Valley, the mythologized founding of the semiconductor industry in the 50's and 60's, beginning with the so-called Traitorous Eight. I think Apple's origins are also believed to have been enabled by the non-compete-less environment. It doesn't as much play into the success from the Dotcom era onwards.