He explained this pretty well. How come most ecommerce websites have "trust badges"? The government didn't need to create an agency to rate web site security, but yet such a thing exists.
If people wanted a health inspection organization to rate restaurants it'd exist. Since the govenrment already monopolized that field it doesnt. Okay, it sort of does, it's called Yelp.
Anyways, the point is pretty clear, we have all sorts of "trust" systems on the Internet to verify everything from privacy (Truste) to security (Verisign, etc.). People can create these types of organizations on their own without government and will if they actually do something useful.
My point was, 5 years ago no one imagined a concept like Square would exist. Just because you can't imagine a nongovernmental organization that serves the same purpose as local health inspectors doesn't mean it's impossible to have such a thing.
On the contrary, quite a few similar organizations do exist, but only when a government monopoly doesn't kill competition in that space. For example, who in the 90s would have guessed that something like TrustE would exist. It's not that far fetched to imagine that if government wasn't policing restaurants a private organization could exist to provide such a service. Yelp doesn't do that because it's not their mission and no one is going to make that their mission since the government already monopolized that job.
I'm not saying we should have 0 government either, but if we're not willing to question the necessity of things as trivial as local government health inspectors then where do we draw the line?