Also there are many potential biotech revolutions - like China developing rice that can use salt water - if our crops could use seawater like the mangroves, that wouod be huge.

Another massive thing, is perrenial crops - meaning you dont have to plant them every year. There are perrenial cousins of our staple foods like wheat, but firstly they are harder to automatically harvest/manage, secondly they do not benefit from thousands of years of selective breeding. So we gave to invest massive amounts of money to ger their yields up, and even if you do, there is no guarantee consumers will eat them - they taste a bit different