I know a similar story of a semi-homeless man also from Chengdu who have been living in a university campus and attending advanced math classes for years. A guy

I know a similar story of a semi-homeless man also from Chengdu who have been living in a university campus and attending advanced math classes for years. A guy with virtually no possessions except curiosity. It was pre-internet so only locals knew about him. The university even offered him a job in the cafeteria so he could feed himself.