That is the Housing Trap, and it has been our approach to housing affordability since the Great Depression. Translation: lower rates so people can borrow more and housing prices can stay high. The goal is to keep housing prices elevated while offering token affordability for some through financial engineering. But cities can—and must—step into the space the national housing system has long abandoned: entry-level housing. If we can build entry-level housing at scale—and we can—we do more than make housing attainable again.