Comment by s_dev

It's the density that is counter intuitive for me and the key takeaway. The others aspects of the method seem pretty intutive.

It's counter intutitive because a lot of gardening or agriculture or artificial horticulture in general is very spaced out intentionally for access for humans to care and maintain.

In hindsight though it does make sense, the density stops certain fauna and flora from competing making the ring fenced area immediatley established.