The main thesis of the article is that famine due to crop failure (as opposed to famine due to war) has largely been eliminated by two modern technologies: industrial agricultural methods (synthetic fertilizer, pesticides, herbicides, equipment) and global trade (air and ship transport managed by markets). This generally appears true - some time ago I tried to discover if total land area under agricultural production…
https://www.monarchtractor.com/
I don't own a farm so I don't have industry insight but it's exciting because I think this is a problem at least appears solvable. I realize large combines are probably an issue but if you can automate the process perhaps smaller machines workout because they can run without human intervention. I am especially excited from what I have seen from the herbicide side. Take pictures the crop is driven over, hit with lasers or targeted herbicide instead of spraying the whole crop. The future is exciting.