The question is: given that we MUST be reducing our CO2 output extremely quickly (5% a year, equivalent to an additional COVID19 crisis every year), what are the chances for your magical cheap hydrolyzers to 1° be developed 2° be deployed at scale before large parts of the world dive into climatic chaos?

BTW there is a very efficient way to run hydrolyzers at 95%: run them on nuclear power. Problem solved?