Aren't people in real estate making a killing these days?
yes.
can that last? is real estate a productive segment of the economy? can we all get rich swapping real estate, or financial instruments, to one and other, at ever higher prices? sure, some people can do very well at it, and we need those jobs too. but at its core, you have to have a productive sector of the economy, its the well from which all the other water is drawn.