I'm not a student of Andrews anymore but I'm also not in the boat that inflation means diddly squat in grains.

Knowledge and technology advancements mean grains will never keep up with inflation. This principle is what lifted the standard of living for the entire world over the last 300 years. Back then we had 90% of the workforce directly involved in producing food. Now it's 2%. In 100 years I bet it'll be something like 0.002%.

Grain prices don't need to come anywhere close to keeping up with inflation. If they did that would mean we aren't getting better at producing food for the world.