In the above presentation, David Friedman explores Anarcho Capitalism which as described in his book Machinery of Freedom which was published more than 40 years ago. Anarcho-Capitalist ideas are often misrepresented constructing a strawman (e.g. AnCapistan) which enemies of freedom often argue against.
This presentation is a good summary which you can send to your friends to educate them how anarcho-capitalism can actually work.
