There is something very human about one person teaching another person to produce food in the kind of detail he goes in to, and I think time farming lends itself to quality thinking and reasoning for a philosophically inclined intelligent person.
They are essentially rediscovering the way humanity grew greens before tractors and herbicides, but there are some new innovations that are making these farms work:
1) Growing things like romaine lettuce in holes cut in landscape tarping is eliminating weeding.
2) They are cutting time from harvest to plate by a few days, and the resulting quality is much better, and they are not using toxic chemicals to control pests and weeds.
3) They are using no-till methods, the only input is compost and earth worms do the tilling work.
I wish that there were more farms like this in my area, because I really hate the selection and price of organic produce in my supermarkets. It is very much lacking, or insanely expensive.