It's worth noting that process is one of the technologies that techno-optimists like to cite to shout down skeptics of their belief we humans will always techno-magick ourselves out of every problem. We will until we can't, and a couple generations after being proven wrong by famine and extinctions, the techno-optimists will resume their chant.
- we are burning up to 10 calories of petrol chemical energy to get 1 calorie of food energy
- we are currently using something like 3 times earth's annual resource production
> countless other finite resources such as water
Water is a renewable resource!
A lot of water used for agriculture in the US is "fossil water" from aquifers that takes millions of years to replenish. The oceans are a limitless supply of water, but like the HB process, require energy to convert to a useful form.