madcap

The article mentions Portland as an example of city planning which encourages interaction and social cohesion. Are there any other examples that spring to mind for U.S. cities? I'm looking to relocate and this is high on the list for me.

I'm just thinking out loud here. One approach is to replace the green Try It Now button with an image of the Prof, under which you say "Hi. I'm the Prof. What's your name?", following by text field and green button. Then experiment with what the green button says.

It would be interesting to see if a vague 'what's your name' approach, rather than a specific direction with a stated outcome, wins in a split-test.