I agree that dc makes sense for amazon because of us govt use of the cloud. But I am surprised to hear that nyc has that many developers, more than SF? There ar

I agree that dc makes sense for amazon because of us govt use of the cloud. But I am surprised to hear that nyc has that many developers, more than SF? There are more people in nyc by far, but more advanced software engineers? Of course there are many advanced software programmers for the financial industries and other major intl companies in nyc. I'm not in the bay area, I'm in a secondary 'leading software city'. Is there a citation for this?