We watch the stock market as an indicator of our economy's health. What if NYC.gov kept a 'live' ticker on its home page listing factors that determine the city's health? In sum, these may include: # of estimated jobs, # of cars, # of bicycles, # of murders, # of unemployed. keep the list at 10 factors. The goal: have the good numbers go up, have the bad numbers go down. This data could even be output on a screen in front of City Hall, and/or in different mediums around the city. It would be a live temperature reading of us.