Nanites directly interfacing with your optic and auditory nerves. Computational neural laces mirroring ancient structures. Self-replicating smart-dust that permeates the biosphere. These things have been around in science fiction for decades. And some of it will eventually be true.
The good news is, they'll be free! Coincidentally, we solved the problem of figuring out when you're actually watching an ad, so the ad market is going to be much more efficient.
I wonder what one would sell to people living out their lives in 1cmx3mx3m slabs of smartmatter perpetually orbiting the sun. Having said that I won't be surprised if the last few ergs of entropy in the universe will be spent on some anti heat-death scam email.
Scratch all that, if you're able to stimulate dopamine production in the brain, you have the perfect product. I'm guessing creating bliss will be a lot simpler than creating visual stimuli.
This is, in my view of reality, already a foregone conclusion which happened way before anything any of us can conceive. I see little reason to entangle the data that makes me me with a bunch of insecure processing power.
