Read my last post Laz. There might not be a city in the WORLD with more dumb people dragging them down than Atlanta.
DALTON is smarter than Atlanta per capita. That should scare you to death!
I would, however, argue that intelligence is not an aggregated function. We are not hive minds. Therefore the means and/or medians don't matter. It is the exceptional and individual intelligence that matters to making a city more functional, more livable.
The dumber among us do not engineer, maintain, and improve the efficient power grids, the sewer and water systems, the telecom and internet networks, the traffic conduits. The more intelligent do.