Can you prove to me that Antarctica exists? That there were ever dinosaurs? If I'm intent on not being convinced?
Come to China for an extended visit. Reside in one region for a while, then move to another for a bit. Repeat that process a few times until you're satisfied. Being able to read and write Chinese (simplified characters) and speak Putonghua (or, if you stay in one place long enough, the local dialect) would probably speed things up for you.
Even then, you could (if you were determined enough) maintain a conviction that you had just had a run of bad luck in terms of the places you'd chosen to live and the people with whom you'd happened to interact.
I don't know how much time you'd have to spend here to be satisfied.