It’s a bad movie that you might have seen before. It tends to show up whenever an advocate of voluntary cooperation explains how society could operate without state coercion. Right on cue, the zombies from “Night of the Living Statists” rear their heads and mindlessly intone, “But if there’s no government, who will build the roads?!”
The zombies can’t hear your response, so it’s useless to try to give them facts and explain how things could be done in a way that’s better for everyone if roads and other such things were provided as private services rather than as coercive government monopolies. For those who are open to the facts, though, is there any evidence that people can actually cooperate voluntarily for their own interests?
As a matter of fact, there’s quite a bit of evidence of that.

We know our world must change, but we keep saying, ‘yes, but…’
X-ray scanners used by TSA banned in Europe over health concerns
If Boston bombing suspect doesn’t have rights, neither do the rest of us
Tools don’t make you great artist, but tools can change how you feel
Why does anyone else care what Elon Musk does with his money?
I didn’t realize this until tonight, but I have been needing to cry
Modern life doesn’t have to be as complicated as we try to make it