I love that book!
The interesting thing about Seymour's one acre compared to the prepper fantasy in the meme is that he doesn't try to pretend an acre is "self sufficient". He optimizes the space for crops that make a big difference to his quality of life - fresh vegetables take up almost half his diagram, for example - instead of putting in a few tiny plots of grain and a duck pond. He has a cow in the same space as the meme does but notes he'll have to buy fodder for it because that's not enough land to feed a cow - but he's cool with that because fresh milk is so important to him..
The difference between an actual farmer and an online bullshitter, I guess.