Jobs. Gates. Berners-Lee. They opened our worlds to wonders: Graphical user interfaces, PCs, the World Wide Web. They were my heroes, and probably yours, deservedly so.

Count the times the word “culture” came out of reporters’ mouths last week, and you’d think they were anthropologists. Usually in this context: “The culture of white supremacy has gone fully mainstream.* “The bedrock idea uniting right-wing communities…  is that white Christian men in the United States are under cultural and demographic threat.”**

If you’ve drunk the MBA kool-aid, you believe VCs and M&A bean-counters rationally price their investments. If an honest professor has confessed to you that company valuation is a black art, i.e., that there’s a heavy dose of intuition involved, you’ve been ahead of the game. The Twitter cockup now shows valuation to be a total dice-roll.