I'd say @nntaleb's bitcoin paper is directionally correct, even if it's not 100% mechanically accurate. 1/n

Source: fooledbyrandomness.com/BTC-QF.pdf

In other words, despite some errors and not getting all the way to the bottom of things, if you continue in the direction of inquiry which he's laying out, you will find the black swans. 2/
Shortlist of bitcoin's systemic risks:

- Long-term security vs. double-spending (instability of mining incentives)
- 21m supply cap not holding
- Any-term security vs. govt shutdown
- Monopoly mining = max-profit strategy
- Censorability

🦃——————|——🍗 ?

3/
From the paper:

> "It proved to not even be a currency at all."

Bit of an overstatement. It's proved so far to be a really bad currency, but a currency. And it could - in theory - become more stable in future under the right conditions (unlikely as those conditions are). 4/ Image
> "Its expected value is no higher than 0."

Also an overstatement. You can't say "BTC is worth exactly 0" based on the contents of this box. We don't know if there will be sufficient hash rate in future - seems unlikely but can't know for sure. 5/ Image
The distinction made between bitcoin and gold is a good one though: If in future the global hash rate falls below a certain threshold, then the system becomes vulnerable to double-spending - a catastrophic loss of function for all (locally held) BTC. 6/
By contrast, no such thing can happen with gold. Gold's "protocol" is physics, you can't destroy it, unless you throw it into a nearby star, and there isn't a central all-of-gold ledger with an update/reward mechanism that can be remotely exploited to stop it functioning. 7/
In short, there are no meaningful conditions under which a the "gold network" breaks down and locally held pieces of gold stop working, and that isn't true for bitcoin. The risk profiles are not comparable. 8/
Quick reminder that Bitcoin's difficulty adjustment has nothing to do with security. All it does is speed up or slow blocks down in response to changes in hash rate. 9/ Image
In other words difficulty is to hash rate as thermometer is to temperature. It's just a measure. So connecting it to security is sort of like saying, "The temperature mustn't fall below 10°C for the system to remain secure. But don't worry, the thermometer will adjust." 10/
NB: Technically what the difficulty adjustment does is make the supply of BTC unresponsive to changes in demand. So as hash rate goes up or down over time (in response to changes in demand) the supply curve isn't affected. 12/
The "law of iterated expectations" is part of the General Theory of Detroyment of Interest in Money (diagrammed below) and the govt shutdown black swan, which involves proactively exploiting the LIE. 13/

Read: joekelly100.medium.com/how-to-kill-bi… ImageImageImage
Bitcoin's vulnerability to adversarial action by govt actors is a more important black swan than the question of sufficient hash rate / unstable incentives in future, imo. 14/

Not mentioning the Lightning Network, however unproven it may be as a technology, or other scaling suggestions like @Truthcoin's BIP300, seems unfair. These are old arguments and it's widely acknowledged that bitcoin must be used differently in future in order to scale. 15/ ImageImage
It could be an intractable problem of course, like trying to build a perpetual motion machine, but no-one's proved that yet. 16/

Disagree with this. It's clearly an offshoot of anti-state ideology, whether you call it libertarianism or not. I would say Bitcoin is the most cunning Rothbardian contrivance to date. 17/

More: Image
Disagree with this too. The traceability of the blockchain won't last. More advanced crypto will make it (for most intents and purposes) opaque. In other words, the goal of being untraceable is being worked towards incrementally, even if it hasn't been fully achieved yet. 18/ Image
Upgrades like taproot and Schnorr signatures are moves towards making traceability-defeating usage the most economic way of transacting on-chain, so that it becomes the norm over time. 19/
Being traceable today arguably works to bitcoin's advantage, because it makes it much less likely to be banned. The plan is effectively to execute a privacy rug pull on regulators and law enforcement in due time. 20/
Conclusion is good. The #1 use case for blockchain technology remains speculating on whether there are real use cases for blockchain technology. 21/21 Image

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More from @joekelly100

28 May
Seems like the Bitcoin "energy debate" is being made complicated on purpose. 1/
You can explain it in 4 tweets if you're not trying to purposefully shape the information to win friends and influence people. 2/

Read 6 tweets
20 May
@Nakadai_mon @profplum99 @bitcoin_lisa @jordanbpeterson @Breedlove22 @dergigi @aantonop - Climate is an absurd comparison
- It doesn't require G20 coordination (tho it's likely)
- Lightning doesn't work if you can't settle to the base layer
- Algo change doesn't work: the network is now more vulnerable. All you've done is restart exactly the same game at lower cost
@Nakadai_mon @profplum99 @bitcoin_lisa @jordanbpeterson @Breedlove22 @dergigi @aantonop I.e. The state will now out-produce you on the new algo instead, even faster. Not to mention you just fucked over all honest miners who were invested in SHA256. So why would anyone invest in new gear to mine the new algo if it's just going to predictably end up in the same place?
@Nakadai_mon @profplum99 @bitcoin_lisa @jordanbpeterson @Breedlove22 @dergigi @aantonop Realistically, the empty blocks wasn't even the important part of the article. E.g. The part where you announce your blocks reactively, creating a black hole of expenditure for all other miners, works whether you censor all transactions, some transactions, _or no transactions_.
Read 4 tweets
20 May
If Bitcoin falls below $10k it starts to be in trouble technically - vulnerable to double-spends. (I.e. For profit, not even govt). 1/

This might even partly explain what happened last year. After the March crash, $5-6k going into the halving put the system in dangerous territory.

But then at just the right time it began a miraculous run as 'institutions entered the market via Tether'. 2/
That price signal demonstrated Bitcoin's resilience to everyone and confirmed all narratives, setting off the stampede. Danger averted. 3/
Read 7 tweets
11 Mar
“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/
Read 4 tweets
9 Mar
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/
Read 6 tweets
12 Dec 20
Formal science has entered the chat.

“BDoS: Blockchain Denial of Service”
arxiv.org/abs/1912.07497

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/ Image
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/
Read 5 tweets

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