Moreover, the metaphor breaks down entirely in a post-scarcity, algorithmically mediated world, where there is no obvious relationship between the opinions a person puts forth and where that opinion shows up, often in a mechanically distorted way. The marketplace of ideas assumes a relatively even distribution of megaphones, or a random... See more
That might be an inevitable consequence of “enshittification”, but the solution isn’t to avoid all algorithms, but just to avoid algorithms you can’t control.
Focusing on the needs of real people isn't something that you can push up to UI design and ignore at the protocolar level. Decentralisation isn't a property of your software or protocol, it's a measure of how much the people who use and are affected by a system can have agency over it — and that agency has to be reflected at lower layers too.
But the problems of the speech platforms are not ones of bad actors at the fringes. Rather, they are baked into the incentive structures of the platforms themselves, through the kinds of speech they reward and penalize. The platforms are rotten to the core, inducing us all to become noxious versions of ourselves.