It's actually quite interesting. Keynes figured out that government stimulus works but it only solves the money problem. When you solve the money problem people simply flee into a different asset that maintains its value. That asset is land. So the business cycle also results in a real estate cycle. "Solving" the dot com bubble encouraged land speculation and ultimately ended in 2008.

The problem isn't the stimulus although there are alternative proposals to reduce the amount of government intervention. Land is simply unique in the fact that it is already there and private land ownership is merely the right to exclude people from the land. There simply isn't any good argument for why money earned off the land itself should go to a private individual. It should go to the government because it is protecting the land with its army and building infrastructure to maintain its value.