Airless tires will still wear out though. That’s the nature of friction with the road. The important one is: how much more durable are these compared to your normal rubber ones?

Per the video, their plan is to 3D print additional sustainable tread on demand and/or switch you over to snow tires if you need them using 3D printing techniques while you have a snack (apparently)

They can be re-belted like a semi truck tire, with a sacrificial wear layer on top of an airless support structure. Obviously they will still consume the rubber that wears down, but most of the tire will be reused rather than disposed of.