The basic insight of sewer socialism is bringing people into your politics by improving their lives in obvious ways. “You win someone’s trust through an outcome” is how Mamdani puts it. The sewer socialists of Milwaukee made the case that municipal ownership of systems like sanitation, water, and power could deliver services more efficiently and more equitably than private ownership. They solved practical problems for their constituents while constructing working examples of a postcapitalist political economy in miniature.

The same method can be applied to the internet. Call it “digital sewer socialism.” Socialist elected officials in New York, Seattle, and beyond can craft policy interventions that increase the quality of life for residents by addressing the difficulties that arise in their relationship with technology. These interventions can be carried out in such a way that, by modeling socialist principles, they win wider support for socialist ideas.