yep...could. But, it likely won't stay there forever. It's possible it could outlast some of us weezers but that's another story.
I saw an old...old...long term grain chart once...one of those you had to lay out on the floor to see about half of it. It had prices from early 1900's. It was ugly...flat, dead, and unresponsive for most of the time. Then about like clockwork every 60 months...POP...a money maker play...then back to flat, dead, and unresponsive. These big pop moves, like the one we just came out of happen infrequently(everything is relative). Course if you spend your time and money accumulating position whilst waiting for the pop...the pop could be the last play you need to make.
Just a theory of course cause like you say...it could go stop, drop, and roll till they take her off the board. By then, I suppose someone would have to find a replacement for corn. :-))