There is no direct adjacency needed to spread seeds from one plot of land to another, that’s one of your made up hurdles. Small seeds naturally get blown far in the wind. Larger seeds still get carried large distances by animals, which was why I specifically copy pasted the bit about birds carrying acorns …
To claim that it would be difficult and expensive to let a wild forest grow in those meadows is absurd, that’s what this was about for me. It’s a convenient excuse to do nothing, but it’s not a very good excuse.








My favorite ship of Theseus example is the Roman Empire. They started out as a Latin speaking polytheistic + republican empire with Rome as capital; and hundreds of years later they had become a greek speaking monotheistic + monarchistic empire with Constantinople as capital. When did they stop being Romans? According to themselves, never.