I mean, it depends. Are you insisting that a market necessarily be composed of extractive firms? Because if so, of course, I can imagine interacting with each other outside of such a structure. But my point is that what people call a “market” in neoclassical economics is literally just any situation where you have a bunch of relatively autonomous groups of people all trying to accomplish various goals all interacting with each other, and so like if we’re going by the neoclassical definition of markets, it really is pretty difficult for me to imagine people interacting with each other outside of that paradigm. The important thing to understand is that even if you hate capitalism, neoclassical economics provide provides a pretty useful framework for analyzing and understanding it, and because of the fact that it can also apply the situations where firms are motivated by other things, like social progress for example, it means it’s perfectly suited for analyzing non-extractive economies too, as long as people are allowed to come together and work on problems without asking someone else for permission first.