Start with https://en.wikipedia.org/wiki/Cidade_Limpa https://en.wikipedia.org/wiki/Cidade_Limpa. I don't think this will slippery slope if well done: - I choo

Start with https://en.wikipedia.org/wiki/Cidade_Limpa https://en.wikipedia.org/wiki/Cidade_Limpa. I don't think this will slippery slope if well done: - I choose the TV channel, website, etc. to visit, but public space I might have to walk through because it's the only option - In that public space it may be impossible not to see the adds - sight lines in public spaces are public property Now, one may ask "what about paying someone to verbally advertise in public space". I think that should remain legal, because that does seem like a slippery slope. I'm willing to risk that society won't collapse so far that that highly inefficient form of advertising became cheap enough with destitute surplus labor.