Adam Mosseri runs Instagram — 3B+ users, plus Threads. In a recent sit-down with Lenny Rachitsky, he said something that's quietly reshaping who gets hired. Engineering used to mean 40–60% of your time writing code. Not anymore. Mosseri's own team gave up requiring a full technical hiring loop — not because they lowered the bar, but because the bar moved somewhere else. He says it himself: "I am not a good engineer. I'm a mediocre engineer on a good day." That wou...