> ... Your examples seem to undercut your point if I'm understanding what you're trying to say.

That perhaps you shouldn't assume that kindergarten-level theories always correctly describe complex markets?

> In your first example the "cost" in the form of traffic etc. was reduced so more people "buy" in the sense that they go on the road until you reach a new "cost" equilibrium.

So go on, do continue this line of thinking. You built more houses.... then what?

Feel free to refer to my explanation: https://news.ycombinator.com/item?id=47433743 - as usual, downvoted by people who can't face the truth.