What I'm saying is, he's either proposing that every farm grows 1000x as many types of plants as they do today, or that a massive number of small farms (let us

What I'm saying is, he's either proposing that every farm grows 1000x as many types of plants as they do today, or that a massive number of small farms (let us say 100 times as many as exist today) each grow a huge variety of plants (let's say 10 times as many types as they do today). But, crucially, these small farms could not grow the plants they chose to grow, instead they would have to grow an assortment of diverse species or cultivars, for no other reason than to support a living diversity. 99.9% of the plants you'd be growing would be plants that people decided a long time ago that they didn't want to eat, or use for any other purpose, because there was a better alternative. Ignore the money part. That was me saying that, if consumption/purchasing of plants is more or less stable, then if you introduce 200,000 varieties of plants into the world, every plant would be sold a lot less. It would be more or less impossible to make a living as a farmer.