TFA talked about the difficulty of division, and waved at the idea that farming was different from pastoral societies because of the ease of division: farming land is more valuable as it is concentrated (because of the well known dangers of having many very small plots that are difficult to work and improve) but a herd (or fishing tools) can be split and merged far more easily. So agriculture drives to unigenture.A blog post like this is mostly hand-waving at complex ideas, but that was her argument for it.
bell-cot|1 day ago
And whatever nice-sounding things TFA might suggest about diving a herd, it's obvious that 8 cattle are worth 4X as much as 2 cattle. And any "leave 1/4 of my herd to each of my 4 children" division will result in a 4X downgrade to the next generation's standard of living.
(Oh, yeah - the TFA has plenty of optimistic hand-waving.)