Danes get 20 year mortgages at 0% what does this mean for the US market?

Danes get 20 year mortgages at 0% what does this mean for the US market?

Denmark, the country with the longest history of negative central bank rates is offering homeowners 20-year loans at a fixed interest rate of zero.  This is very similar to the zero percent financing on cars in the US except you are buying a house.  What does this...