Thousands of tech staffers at Meta and Google do "fake work" and were brought on to fulfill the "vanity metric" of hiring, according to the outspoken investor and tech veteran Keith Rabois.  Later on the call, he estimated that Alphabet's Google and Facebook owner Meta had thousands of employees who don't do anything.  "People are watching Elon and Twitter and he's clearly setting an example — maybe it's an extreme example," Rabois said, adding later that he wouldn't bet against the Tesla mogul