Obviously every traffic death is to be taken seriously.  Duh.  What I'm talking about is how realistic it is to expect that number can go to ZERO.  Obviously, it isn't realistic, any more than it's realistic to think we can get all crime to ZERO, or all broken bones to ZERO.

If you think it's even remotely possible to never have a single traffic death again in a city the size of Denver, then you're being incredibly Pollyanaish.