Very instructive discussion, for which I'm grateful. I learned something I did not expect, which is that The Netherlands are not Denmark. I have even lived in Europe for a year without learning that fact.

Something I expect will continue, and will soon exert increased change in the matters you discuss here is decentralization. The particular business you mention may even be one of the first impacted by decentralization, as aquaponics is able to provide much more food to consumers and reduce inefficiency that is caused by centralization of food production.

Decentralization is freedom, and extremely efficient in comparison to extant business models. That efficiency is much of why it's more profitable to those that adopt it, even when means of production, resources, and labor is more expensive on a per unit basis than centralized mechanisms. As development proceeds, decentralized means of production will only grow more profitable, and parasitism via centralization becomes ever more of a drag on prosperity.

Thanks!