TBH I don't see much of a bubble by these metrics. My indicators for "not in a bubble" are:<p>1. New grads are more interested in getting a job at a big company than in getting a job at a hot startup.<p>2. Fundraising requires revenue.<p>3. There is a constant negative press cycle around the industry.<p>4. People are moving out of Silicon Valley.<p>5. CEOs from the last bubble are getting indicted.<p>All of these are present today. Meanwhile, out of the article's list, the only bubble indicator I see is that Apple, Facebook, Google, and Amazon have all built shiny new headquarters. Tech P/Es are incredibly <i>low</i> compared to the general market (Apple is at 14 vs. the market's 25 or so), and the market P/E is not out of line with interest rates (P/E of 25 implies a real rate of return of about 4%, vs. about 2% for Treasuries. Mark Zuckerburg and Larry Page are too busy raising kids to either attend to their companies or be celebrities, Tim Cook is busy running his company, and Jeff Bezos is busy getting divorced. Haven't noticed any particular CEO fashion. People are looking to grey-haired figures for leadership, not young people. Six-figure tech salaries are just inflation: there's money (<i>real</i> money, not bubble-money) in tech, and intense competition for employees, and so that filters down to wages.<p>If anything, the real tech bubble burst in 2015 with the unraveling of Theranos, Zenefits, and Uber, and we've been in tech recession since. 2015 also seemed to be peak Silicon Valley rent increases, and the last time you could raise capital on just an idea. There was a mini-bubble in crypto in 2017, but that also popped, and the dominant zeitgeist today is complaints about how shitty life is, how there's no growth anywhere, and how we're on the precipice of a revolution, civil war, environmental catastrophe, dictatorship, or all 4.