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by sankyo 1101 days ago
This old psychology video comes to mind. https://www.youtube.com/watch?v=vJG698U2Mvo

Also, in San Francisco a lot of the "paint" in the crosswalks is little plastic pellets melted. I have had my rear wheel slide out going over the thick white crosswalk bars. Best to keep off the throttle and roll over them. Same for the giant metal plates they use to cover up ongoing construction projects. They can be very slippery.