My reasoning: the FED will likely drop interest rates under political pressure and Congress will keep on borrowing money to stimulate the economy. We'll once again get the doubly whammy of inflation plus low interest rates driving demand plus failure to deal with zoning regulations.

Seems like that jump over the last 4 years is a low interest rate phenomenon... though my preferred reasoning for betting this down would be 'Lars will be astoundingly successful in creating popular support for a land value tax in the coming years'