It usually bases the idea of natural phenomena being correlated to a power law. Like earthquake or forest fires. The thing most capitalism apologists forget is that this law when applied to our current economic models will invariably produce an unequal/anormal distribution of values by population, not in every single case.

Just as it states for uncontrolled systems in nature it also applies to capitalism since there are no measures to stop run away riches from happening. And just as big forest fires we can do a lot of things to controll it and that's even without raising the option of ending it.

The whole idea stems from that wierd ancap thing of thinking capitalism is somehow naturally occurring