Ultrahigh Density Cities in SF and the FutureS

Mad futurist Adam Greenfield has an amazing essay up on his blog about "ultrahigh density" cities — cities whose populations are so squashed together that you have a singularity-style situation. He talks about real-life cities, as well as ones from science fiction. If you're interested in the future of places like New York or Mumbai or Shanghai, you won't want to miss this. [Adam Greenfield's Speedbird]