At @Google, we are moving from a writing‑first culture to a building‑first one. Writing was a proxy for clear thinking, optimized for scarce eng resources and long dev cycles - you had to get it right before you built. Now, when time to vibe-code prototype ≈ time to write PRD, PMs can SHOW not tell. Role profiles are blurring, creativity and building are happening in parallel.

I was on a plane with no internet for a few hours and was thinking about cryptography, and then I remembered that Vitalik Buterin once off-handedly mentioned that Poseidon was older and better-studied than BLAKE3, and I got all steamed up about it again and wrote this rant: ⤵️