“Next we just need to mark the consumer’s retina and brain to ensure our ads truly went through”

DRM helemts - an idea whose time has come: https://web.archive.org/web/20020802214412/http://www.oreill...

Smart glasses could be able to tell what got through to the retina at least.

But fuck it, just brand all our brains with "SLA Industries".(fictional dystopian corporation ruling future)