That's interesting... So what is the optimal farm size, in terms of people and land area? When the capital development of a country becomes a by-product of the activities of a casino, the job is likely to be ill-done. — John M. Keynes
Land area OTOH is very variable, depending on the type of production, the amount of capital available... A shepherd with a dog can look over a much larger herd than without...
The insight is that agriculture is very easy to decentralise, which is why economies of scale don't apply. Un roi sans divertissement est un homme plein de misères