Earlier quoted context omitted.
Do you know what the lightning network is? It changes all of these relationships, and it is key to what we are talking about, but you didnt mention it in this comment. Separately to the lightning network, the security (hashrate, energy usage) is still not directly linked to the number of on-chain transactions that are processed. You can compute "a practical energy/block" specifically for bitcoin but it does not trans…
What do off-chain transactions like Lightning have to do with the transaction costs of the blockchain itself? We can trade bitcoin over HN comments, that doesn't mean that the bitcoin blockchain is involved in our trade. The whole discussion is about the Bitcoin blockchain itself. Altcoins, lightning, payment apps etc are all entirely irrelevant to this point. The bitcoin blockchain as it exists today has a pretty we…
But changing the blocksize is just a software change. It doesn't require outlay on a "bigger engine", or any new engineering. The "existing bitcoin network" could switch to it with a 1 line change in the code.
So it's not quite the same as some of your examples.