>I don't understand this clearly I would consider understanding this to be a necessary condition for advocating for (or using) BitCoin. Also, one of the inter

>I don't understand this clearly I would consider understanding this to be a necessary condition for advocating for (or using) BitCoin. Also, one of the interesting outgrowths of focusing on the reachability of the network is that a few features of the network. Assuming the network is accepting all transactions, miners must be working on different subsets of transactions routinely. This implies that there's quite a lot of computation getting thrown out, routinely, as different miners start working on different subsets of transactions. It also implies that there is a miner-to-miner DOS method, where the majority of the miner network blackballs a miner - no longer accepts their integrations. This is serious, but much less serious than an arbitrary public key freeze, which can affect anyone (your tumblers aside, it's always possible). Finally, I begin to understand why Satoshi started with money. I suspect at some level this is not about money, but he needed to incent people to get this ball rolling. What is it about? It's about coherent, persistent truth. Transactions are just one kind of event that happens in the world. The pattern is valid for any global data-structure that you want to have great survivability and coherence. You might use something like the blockchain (adding back a little jargon) to store, for example, the mind state of an AI. The proof of work, rather than a mechanistic search for arbitrary hashes, might be somehow related to the operation of the AI's "mind".