Porter Square briefly enters time warp; travels back to early 1990s

Some Assembly Required reports he was stopped for a light on Mass. Ave. this evening when a guy crossed in front holding two old-style boomboxes, both playing an old Nirvana song:

... [T]hey were probably tuned to the same radio station. Or given the hardware, who knows? Maybe he'd copied the music onto cassettes and pushed play on both decks at the same time. Rock on, my friend, rock on.