but—even in the most totalitarian state you can imagine—you can’t quash demandWell, what you do is you subsume all of human discourse into a new, faster, online form which can use the powerful mechanisms of variable schedule of reward and monetized viral growth. Moderate and supercharge all of that with AI and Deep Learning. Make sure that you infiltrate all of the big tech companies with underpaid (thus easily radicalized) ideologues who would gladly violate company policies and laws for their cause, or at least exercise bias in the way they enforce them. Use this pool of radicalized confederates wielding this vast technological power encompassing and accelerating all of the industrialized world's most relevant discourse. Use it to control all thought and all discourse.
If people dissent, then use the power over all information online to enable your ideologue radicals to construct propaganda narratives to push your favored view of reality. Use the technological power to construct a hermetically sealed filter/search bubble for everyone willing to subscribe -- then make it addictive to them on top of it! At the same time, find, marginalize, and silence all of the dissenters. De-platform and un-person a few to make an example of them. Control all of the narratives, and if contradictions and inconvenient facts leak out, then craft narratives to explain those away. If pesky dissenters still persist, notice that toxic wacko fringes are unparalleled at drawing attention and generating vicious circles of outrage driven virality. Amplify and weaponize their messages. Start tarring the dissenters. Use unfair guilt by association. The more outrageous, unfair, and toxic the tarring, the better, as it will generate yet more toxic outrage.
Control all of the new digital media. Make it cool for young people to nullify "Free Speech." Make it cool and hip for them to say, "..then f##k your "Free Speech!" Control all of the speech. Control all of the ideas. Make it "uncool" or even socially unacceptable to have any kind of dissenting thought to the pushed narratives.
It's a scary sounding plan, with the potential for tremendous destruction of societal cohesion and culture. I don't think it will work in the end, however.