Yeah, this feels right on the cusp of being interesting. I think that, being charitable, it could be interesting if it turns out to be successful in hiring and coordinating several people and physical assets over a long time horizon. For example, it'd be pretty cool if it could:
1. Do some research (as it's already done)
2. Rent the land and hire someone to grow the corn
3. Hire someone to harvest it, transport it, and store it
4. Manage to sell it
Doing #1 isn't terribly exciting - it's well established that AIs are pretty good at replacing an hour of googling - but if it could run a whole business process like this, that'd be neat.
Or, just buy some corn futures. By slightly increasing the price of this instrument, it slightly signals farmers to increase production. Corn grown!
Is that actually growing corn with AI though? Seems to me that a human planted the corn, thinned it, weeded it, harvested it, and stored it. What did AI do in that process? Send an email?