Reddit mentions of Macroeconomics (Fourth Edition)

If you want, I could refer you to some economics courses that you should take. Like something that requires at least intermediate econ, calculus, and probability as a prerequisite. Perhaps you could just crack open this macro textbook by Charles I Jones that I used for intermediate macro in my studies. You could also familiarize yourself with the mit ocw page on uncertainty in economics, which cites Perloff's Micro text that I used for intermediate micro.

I'm not handwaving anything, I just don't want to try and summarize all of modern economics in a reddit comment. The fact that you use politically loaded terms like 'free market' to handwave away the problem of information asymmetry reveals the depth of your ignorance on the subject, especially when you use the examples of lawyers, auto repair, plumbers, and contractors more generally to support that point. Arguments from authority are certainly not valid in and of themselves, but it's pretty ridiculous to expect someone to break down more or less all econ after principles in a Reddit comment just to illustrate that most economic problems are more complex than just allowing the 'free market' to take care of them. Do you really think that the work of 1000s of economists collectively spending millions of hours thinking about and studying hard problems empirically in economics can be summed up by saying "the market is the solution to all of these problems"?

Get real.