I choose to take this as a teaching moment, telling people about how there's a capacitor that stores the energy generated through the wheel and it will turn itself off in a couple of minutes. Or the executive summary "generator- no batteries!"
I saw this bike parked downtown (I actually see it a lot- it's hard to miss and is generally parked in the same place). But it was parked in a new place, that I walk by instead of biking by, so I stopped to investigate.
This person must have had some incidents with people trying to "turn off" his (why do I assume it's a "he"?) generator powered lights, because he took action!
Funny- this bike started life as a Phillips light roadster. It's hardly recognizable as anything except a hard- core commuter now. Someone over time has made this into a uniquely personalized vehicle. It doesn't meet my definition of lovely, but I can definitely recognize that it's perfectly adapted to its owner's needs.