[sbov]

Ads tend to be in private spaces though. You can just see it from public space.

Another way to achieve your goal is for the glasses to render giant walls around all private spaces. All cities would look like Manhattan then.

[JulianMorrison]

I was thinking more like: detect an advert, draw a grey box over it. Or kittens.

[kuschku]

You can still ban ads in private spaces. Many cities did that. Sao Paolo is just one example