[omnimus]

Having worked for two vertical farming startups… people have been saying the same thing for 20 years.

Turns out when somebody actually tries this in practice its not so feasible. Considering both of the startups failed in quite rapid fashion i would say it might not be so surefire like you seem it to be.

[wait_a_minute]

The most recent examples I've seen from the last few years are very promising. Big investors are moving in, too. Even if the attempts failed in the past, they'll keep getting better. Just like with anything else - renewables, fusion, etc.