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Zitron is a PR dude who runs a PR company and has never had any experience, training, or meaningful contributions to technology. He found twitter success posting shittakes about AI, ran that into a podcast, and now he's in the FT. Zitron is a professional contrarian and PR man, saying "AI sucks" has found him fame and success.
Unfortunately, this seems to strike a chord for you.
Not unlike his blog posts and podcasts. Spiteful insult-laden rants (he even admits to this on occasion). If you're looking for a financial analysis on AI, I'd literally look anywhere else.
Super weird to say that someone is hand waving when what they are doing is pointing out that an argument is hand wavy.