You don’t need a blockchain to use cryptographic signatures to provide high assurances on things. 1/
You don’t need a blockchain to have programmable money and contracts which execute automatically based on some external condition being fed into them. 2/
You don’t need a blockchain to have unique mp3s, FLACs, and artworks, with a personalised message embedded in the file, to you from the artist, cryptographically signed. 3/
The only thing you need a blockchain for, and the only reason for incurring all the inefficiency and cost, is permissionlessness, censorship resistance, ungovernability, etc. 4/
It’s a strategic advantage for people who make and own stakes in these projects to keep all of the above things conflated as ‘blockchain’, but they’re separate things. 5/
You can build a better music service... try new business models... open source tech... create new ways for artists and fans to engage... automate the execution of payments and improve settlement speeds...
All without a blockchain. 6/6
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“Putting energy into batteries is good. Therefore I declare that Bitcoin is a battery.”
Aside from not making sense, the economics of this don’t really work. Chips cost money. Bitcoin mining = wafer-thin margins. You can’t just keep adding hashrate... 1/
If everyone does this “battery” thing everywhere, it becomes unprofitable — for everyone. I.e. Profits are competed away and you spend $100k on chips with a lifetime expectation of earning <$100k worth of BTC. 2/
On resource consumption, Bitcoin Inc. is mostly just stringing together intellectual sleights of hand. Bitcoin chews up ~$20 billion per year of resources (waste chips as well as energy) at the current price ($50k) and block reward (6.25BTC) levels — it’s that simple. 3/
Now we’re getting somewhere. You kill blockchains by breaking the incentives. Not sure the attack in this paper would be effective, but it’s where the vulnerability is.
1/
The goal of a sabotage attack is to upset the game theory, system-wide (not just miners), so that the whole thing falls apart of its own accord, in a decentralised way, via the spontaneous action of the individuals involved.
2/
The Bitcoin network is not a harmonious love-fuelled collective; it’s a disorganised body of ruthlessly self-interested and mutually distrustful individual actors. If the incentives are broken, Bitcoin is broken. Break the incentives, and you break Bitcoin.
3/
1. Ban Bitcoin commercially and describe in detail how and why it’s the tool of choice for violent criminal organisations, wealthy tax avoiders, child pornographers, scammers, ransomware operators, and other socially destructive actors.
@balajis 2. Announce a plan (completely out in the open) to attack the chain to destruction via mining—physically seizing mining ops, controlling supply chains, and manufacturing whatever else is necessary to get the job done.