> One layer of crops already wants a full dose of sunlight
Is that actually true? Crops are grown in a pretty wide range of locations, and sometimes the same crops are grown in different locations with quite different insolation. Surely there must be at least some set of [location,crop] pairs where the crop needs less than the full amount of sunlight available in that location?
Sure, but you'd then be limiting the applicability of the idea quite a lot, which goes very much against the idea that this can be used to chop delivery distances down.
I also find it hard to believe that you could find 10 layers' worth of crops this would work with. Two or three, maybe, but I would be astonished by more than that.
Is that actually true? Crops are grown in a pretty wide range of locations, and sometimes the same crops are grown in different locations with quite different insolation. Surely there must be at least some set of [location,crop] pairs where the crop needs less than the full amount of sunlight available in that location?