Our economy relies heavily on expanding the money supply and mortgages are the primary driver. With home buying tanking so dramatically that's a real concern. The money supply could continue to tighten or the government can artificially grow it. Either of those options leads to serious issues though.

Ultimately the free market will solve this. The 5-6 million number is overblown and based on unrealistic household formation expectations. Where there is an entire generation of potential homebuyers willing to spend trillions on home buying, there will continue to be people finding ways to make it happen.