...that people will not modify their behavior. All that may end up happening is that more people will use the roads once congestion is decreased, with the result that congestion may end up at similar levels. Or that people will choose to live farther away, and end up with a similar commute time. Cars have not decreased our transportation time as a society.

Anyone who read Superman comics in the sixties understands that you can go back in time and change things, but the results are always the same. Or, as Stewart Brand and David Byrne would say, the future wants to be the same as it ever was.

Excuse my ignorance, but does Google have to have a physical presence in China to serve the Chinese market? I can Google google.uk. Couldn't people in China do the same, and then it would be China's job to filter the results? Also, why can't Google move their Chinese headquarters to Hong Kong? My understanding is that the Chinese government takes a much more hands-off attitude there.

I imagine that there's very good reasons why none of this would work, or Google probably would have done it already, but I'm curious as to what those reasons might be.

...in India. Yess!!!