> During WW2 the US built e.g over 300 destroyers in 6 years. Yes, with 40% of GDP going to war production: * https://www.stlouisfed.org/en/on-the-economy/202

> During WW2 the US built e.g over 300 destroyers in 6 years. Yes, with 40% of GDP going to war production: * https://www.stlouisfed.org/en/on-the-economy/2020/february/war-highest-defense-spending-measured https://www.stlouisfed.org/en/on-the-economy/2020/february/w... And every other form of manufacturing shutdown or rationed for the war effort. Even how jeans were stitched together was regulated (to save on resources): * https://www.ropedye.com/2013/05/levis1944-501/ https://www.ropedye.com/2013/05/levis1944-501/ * https://www.levistrauss.com/2020/09/30/world-war-ii-levis/ https://www.levistrauss.com/2020/09/30/world-war-ii-levis/ > It might not be impossible but something has fundamentally changed. Societal priorities and focus against an existential threat.