It gets more technical because the open entropy aspect is the only reason much of the consensus system works.  For instance, in PoS, a large holder can cause permanent preemption and just shut the chain down forever.  There is no such thing as "forever" in an open entropy system for him to do that.

There is also no real fault or state recovery in PoS because you have to reference the parts that have already failed in order to continue.  Like I said, the concept of things begin stuck in a state of "forever" is usually a negative in terms of security.  Also, like I said earlier, you need native tokens to utilize the system, and since the system has a decentralized exchange (mining), then anyone can acquire them at fair market price.  For a system of closed entropy, the coins are shut off and it's basically a system of permanent extortion by whoever owns them, assuming the network effect is able to force others into the system.