Elon Musk is conducting a public, real-time experiment as head of Twitter. Attracting the most fury and attention are his attempts to make the social media platform, which has more influence on media and the national political conversation than any of its competitors, into a freer, more transparent forum. By releasing reams of internal files to a series of journalists, he has also exposed the cozy interaction between pre-Musk Twitter and government censors, including the FBI. Yet the debate over censorship is arguably of secondary importance to the long-term impact of the Musk experiment. Musk's willingness to clean house — by some accounts, he has fired over two-thirds of Twitter’s former staff — could have a domino effect throughout Silicon Valley, putting a dagger in the heart of the Left’s ideological control over America’s powerful tech sector. Yoel Roth (via Twitter) That’s because the simple functioning of the app itself hasn’t deteriorated. The arguments have mostly been over who gets to tweet, taking for granted it represents the only barrier to use. This raises an extremely dangerous question many would like very much to avoid: Exactly what, other than answering the emails of FBI agents and enforcing woke diktats, did two out of three Twitter employees, with an estimated median salary of $150,000 a year, do? Musk’s tenure and his decisions as CEO pose a direct challenge to an entire class of well-paid managerial types,...