Potatoes added themselves to the system, but did not destroy it
1) Once a staple crop is established, we have what economists call a “lock-in”.
2) A pattern continues because it is cheap to replicate and would be expensive, both financially and psychologically, to change.
3) The whole of north European agriculture is based around a highly complex but very efficient system of wheat and small-grain production.
4) From the plow types to the bakeries and pasta factories, everything is set up to deal with wheat.
5) So, although the potato came early and proved far more productive and well adapted than wheat, wheat remains the staple food — except in areas too poor and marginal to afford it.
6) The iron hand of economics forced the impoverished Irish and Poles to live on potatoes in the old days, but they yearned for bread — and now they can afford bread, and are eating fewer potatoes.
7) Potatoes added themselves to the system, but did not destroy it.
오늘도 질문이 있습니다 T.T
밑줄친 부분이 잘 이해가 되지 않아서요
늘 감사드려요! :)