UPON a fellow entrepreneur from Shenzhen coming to the capital, that evening his Beijing associate took him out to dinner, followed by drinks at the famous Sanlitun Bar Street and an hour or so of Karaoke at the Cash Box Party World. At midnight, when the sleepy host intimated it might be time to go home, his guest replied in genuine astonishment, "But it's at this hour that Shenzhen nightlife really gets going!"