I think a no car day would get more push back than the Olympics being no car. The Olympics is a temporary event, No car day would be forever. Not that I would hate it. Another thing too is that there’s going to be a lot of resource put into ensuring the Olympics goes smoothly, like additional buses brought in from all over SoCal. I guess the same can be done for a no car day, but again, i feel there needs to be huge political support for it and I don’t think there is. Even 1 day a month would be a nice stepping stone. Ciclavia is sort of like that, but its so concentrated that it feels more like a bike festival more so than leaps to changing people’s views of transit (though I understand that the point of Ciclavia is to encourage more walking/biking and less cars).