I understand that you mean just price increases. But in addition, do you think the Federal Reserve will also act normal in the next years, haha.
Overall, I think agricultural prices might have more room to go up just as the main article showed that they are so connected with all other costs. And overall they are probably behind a little right now and need some catching up. In an inflationary time like the 70s everything comes in waves, so not everything is rising at the same time. But everything rose more or less over the whole time-frame, like gold, oil, materials, sugar, …
I guess the proverbial “A rising tide lifts all boats” will be with us for a few more years in commodities like Jim Rogers believes.