Apparently I choose a great example then! There are a lot of examples where the assumptions, especially this one, of microeconomics hold. Profit-maximizing cor

Apparently I choose a great example then! There are a lot of examples where the assumptions, especially this one, of microeconomics hold. Profit-maximizing corporations don't have cyclic desires. In many cases, people don't have cyclic desires (e.g. in the flavor of the soda they want). Microeconomics starts with those, much as becoming a structural engineer requires understanding the basics of Newtonian physics. They get into more complicated math in more advanced courses, but they don't start there. All of engineering, science, etc, is "the math at a deeper level is too complex, here's a simplifying but false set of assumptions". And then a subset of people who learn about that care about cases when the assumptions break down and studies the next level.