Well, "supply and demand determine the price" only applies to fully transparent goods markets. The labor market works differently because its general product is the demand for labor. There is no model for that.
And the connection between money supply and inflation has been empirically refuted so thoroughly… It already starts with the fact that what a central bank can create electronically is not money that ever reaches the citizens' pockets. For that, it would have to physically print and distribute cash.
The problem is that YOU acknowledge having knowledge gaps, but professionals often operate with similarly limited understanding. They just express it in technical language so complicated that no one notices. To put it bluntly.
My crystal ball knows NOTHING about 2027. Nada. The world is moving in such a way that no serious forecast over such time spans is possible.
That building will become cheaper, I hardly believe, since building land will continue to become more expensive. Possibly the existing stock will decrease in price.
But that’s just guesswork!