Could we feed the current world population using purely organic farming methods?
I think the assumption that industrial farming and organic farming are incompatible is incorrect. There may not be the possibility of the “closed loop” farming where a farm uses manure from animals to fertilize their fields, but that’s not to say a large scale agriculture business couldn’t truck in treated municipal sludge or something similar.
Organic is not necessarily sustainable and sustainable is not necessarily organic. Yes, I’m fully aware. “Organic” is such an ill-defined term, that I tried to clarify that what i was referring to was crops grown (a) without modern petro-fertilizer, (b) crops grown without modern industrial pesticides, and (c) crops grown sustainably, so that they can support as many people as possible into the future. The OP asked about investing in organics, and used a sustainability tag, so it didn’t seem too unreasonable to me.