I’ve posted other threads about it in the past. I think I used “farming” as a keyword.
[Everything grown would be organic, free of pesticides, weather, and diseases.]
We filled in our indoor swimming pool with 15 truck loads of top soil. Spring can’t come soon enough for me!
I watched the first video at your link about vertical farming. IMO, it is impractical to use this system to feed the world.
Take wheat for example, we are talking hundreds of thousands of acres in the US alone. Just what kind of multilevel structures will it take to hold that much nutrient enriched whatever to equal that land mass of production? If soil is used in these buildings, where will it come from? If enriched water is used (hydroponics) we are still talking some serious weight.
I really think modern US agriculture is at it’s best. Leave the topsoil where it’s at and get the best use from it in it’s natural state.
JMO.
Hydroponic agriculture is really cool and not nearly as difficult as many make it out to be - mostly requires affordable electricity. This is why I always laugh at the those who say we have too much population to feed. The problem will never be production unless electricity is not available. Anyone who has ever grown food in a greenhouse knows how productive it can be and the aquaponics trend is really cool if you like Talapia. Makes veggies and protein in one system.
Like others have referenced - robotics in agriculture is another major reason our immigration policy (or lack thereof) is so ridiculous. Robotics will take over many blue collar and agricultural jobs sooner than we think - there will be little for the uneducated to do.