Funny that you bring up Gangnam Style, since modern South Korea (the Seoul metro region in particular) is the closest thing to how William Gibson imagined Chiba

Funny that you bring up Gangnam Style, since modern South Korea (the Seoul metro region in particular) is the closest thing to how William Gibson imagined Chiba City in Neuromancer, right down to the unregulated black clinics (though specializing in cosmetic surgery instead of cybernetic implants/enhancements. I'm sure SK's population will be among the first to adopt them en masse once they're available).