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Showing posts with label bitcoin. Show all posts
Showing posts with label bitcoin. Show all posts

Tuesday, 14 January 2025

The Bubble With Bitcoin

Followers via LinkedIn will have seen a string of my recent posts focused on the fact that bitcoin miners are borrowing to buy bitcoin, aping the "very novel strategy" of MicroStrategy, the loss-making former software company whose boss, Michael Saylor, continuously hypes the cryptocurrency. We've been here before, in 2022 when several miners collapsed, ruining many amateur investors, but the stakes are gradually rising each time...

In November '24, Allianz, the German insurer, bought 24% of MicroStrategy's $2.6bn convertible bond issue that was used to purchase bitcoin (raising the price by 4.3% to $98k). It seems that Allianz wants to gain exposure to bitcoin without actually going to the trouble of buying and holding it, even though it could have got that exposure more cheaply through ETFs. After all, the convertible feature of the bond only gets Allianz shares in a company that consistently loses money and whose share price is tied to bitcoin volatility and price: 

On November 21, 2024, MicroStrategy issued $3 billion of 0% convertible notes maturing on December 1, 2029... Its stock was trading at $430 at issuance, and the conversion price was $672. Investors were willing to accept call options instead of interest payments. The equity options have value if MicroStrategy shares rise by more than 50% over the next five years. If the stock does not get above $672, investors will earn a 0% return on their investment. MicroStrategy And Its Convertible Debt Scheme

By purchasing the bonds with cash that it knows will be used to buy bitcoin, an investor like Allianz is effectively boosting the price of bitcoin - and by direct correlation MicroStrategy's share price - to the conversion price. As Michael Lebowitz explains, MicroStrategy's share price began correlating with the price of bitcoin the more the company borrowed to buy the cryptocurrency - a total of $7.27bn since 2020.

So it was interesting to see the USD price of bitcoin subsequently hit $106k for two days in December (for which Donald Trump weirdly congratulated everyone, so presumably he's in on the trade).

But why did the price stick so firmly at $106k (before sliding ominously below $100k)? 

Well, on 7 Jan 2025, the FT reported the estimate by CoinShares, the investment group, that:

“Including depreciation and stock-based compensation charges, the average cost to produce a bitcoin was $106,000.”

This is somewhat new, as previous cost estimates at the time of the bitcoin mining bankruptcies in 2022 only seemed to factor in the (very significant) energy/computing costs, not those wider costs.

Meanwhile, the FT reports, not satisfied with mining rewards that halved in April, miners are continuing to borrow more and more to buy and hold bitcoin in a bid to support the price (and eventually ‘profit’ from sales to ‘greater fools’). For instance, at the latest peakRiot Platforms borrowed $595m, maturing in 2030, using it mainly to buy bitcoin. Others have also concluded that bitcoin miners aremimicking MicroStrategy by borrowing to buy bitcoin.

But all this capital is clearly failing to support the price of bitcoin at the cost price, as the slide below $100k from the recent peak has demonstrated. This suggests that the miners (and MicroStrategy) will need to borrow again and buy more bitcoin as the overall mining costs rise, hoping that the price of bitcoin at the time of bond maturity is enough to repay the principal owed.

Some miners are looking to diversify into supporting AI and to cut mining costs by producing their own electricity from smaller, remote landfill sites (though surely the power generated should still be accounted for as a cost at market value?). But both of these moves highlight miners' - and bitcoin's - vulnerability to competition for resources from businesses pursuing more profitable ventures, or actual energy producers. Note that crypto mining is responsible for up to 2.3% of US annual electricity consumption

All of which suggests that it is not sustainable to endlessly borrow to buy your own product without being able to sell it.



Wednesday, 21 December 2022

Is The Production Cost Floor Another Flaw In Cryptocurrencies?

The fact that one of the largest bitcoin miners has just filed for bankruptcy underscores the significance of the fact that the BTC price has hovered around the average mining cost of approximately $17,000 since November 9. When added to the fact that both the trade volumes and the price of the supposedly 'trustless' cryptocurrency have been flattened by the implosion of numerous cryptoverse intermediaries in the past few months, it seems there are a number of very important 'externalities' that the bitcoin protocol and blockchain are unable to address and the market has failed to appreciate.

Of course, Core Scientific's filing follows several warnings, and the bankruptcy of another miner in September, as explained by Coindesk in the latest coverage. But the fact that this filing comes amidst the market doldrums related to the FTX collapse and speculation on Binance makes it particularly significant.
How do you calculate the cost of mining a bitcoin?
One industry 'Bitcoin Mining Profitability Calculator' assumes the following (presumably not necessarily for the major miners):
Mining metrics are calculated based on a network hash rate of 6,363,326,225 GH/s and using a BTC - USD exchange rate of 1 BTC = $ 16,810.56. These figures vary based on the total network hash rate and on the BTC to USD conversion rate. Block reward is fixed at 6.25 BTC. Future block reward and hash rate changes are not taken into account. The average block time used in the calculation is 617 seconds. The electricity price used in generating these metrics is $ 0.12 per kWh. Network hash rate varies over time, this is just an estimation based on current values.
Of course, the mere quantity of energy consumed in mining bitcoin is itself a significant problem to be solved.
When considering the drivers of the base mining cost (or the Production Cost Floor or Bitcoin Electrical Cost, as calculated by the analyst Charles Edwards), it's worth noting that the bankruptcy filings for NASDAQ listed Core Scientific (CORZ) explain that 45% of a proposed $72m rescue package hangs on a #BTC price of $18,500. This suggests that Core's actual mining cost per bitcoin is higher, presumably because of higher energy costs relative to other miners, but also the cost of its financing arrangements.
Core Scientific seems to have effectively borrowed over $600m in convertible notes, bank facilities and DeFi loans, and in the context of a bankruptcy this must affect Core's own base mining cost. But this should extend to other miners, given the Core's 10% market share; the fact that another miner, Compute North, filed for bankruptcy in September owing about $500m; and the sector as a whole has $2.5bn in fiat currency borrowings. Borrowing must also be directly related to the miner's own view on how much it needs to weather market troughs and possibly to protect a desired base price (not to mention that fact that the Bitcoin protocol halves mining rewards periodically with the next halving due in 2024, on current forecasts).  
What's harder to factor in is the wider risk of contagion due to lenders' overall credit risk exposure and potentially increasing finance costs or even withdrawal from the sector in certain circumstances...
In other words, a more sophisticated base mining cost calculation is fraught with uncertainty. 
At best, therefore, the base mining cost is merely one factor to consider as a guide to the future of miners and bitcoin.
Can the mining sector (and bitcoin) recover?
Core Scientific says it hopes to win the support of key creditors and continue mining.
Continuing market hype also suggests that Bitcoiners are still ploughing in time and advertising spend to stoke demand, which may increase trading volumes and prices. 
Energy/electricity costs should fall, if and when Putin finally accepts defeat in Ukraine... but when will that be? 
Will lender appetite persist amid the ongoing contagion from the FTX (and Binance?) fallout?
Time is indeed money when it comes to the $2.5bn in real world commercial debt outstanding among miners. 
Stick all that in your protocol!
When all is said and done, it seems to me that the claimed ideological 'purity' of bitcoin as a 'permissionless', 'trustless', 'fully decentralised' 'currency' is actually vulnerable to the following 'externalities' (either in the sense of affecting outsiders but not being reflected in the market price and/or being apparently outside the perception of bitcoin proponents/fans): 

  • the centralising effect of intermediaries, such as crypto exchanges, custodians and decentralised finance (DeFi) providers;
  • wilful misconduct by intermediaries (resulting potentially in active distrust of bitcoin itself); 
  • the sheer scale and quantity of energy required to mine each bitcoin;
  • rising energy costs;
  • limits on computing efficiency; 
  • existing and proposed regulation; 
  • competition from other cryptocurrencies or types of token (e.g. stablecoins);
  • (over) borrowing/investment by miners; and
  • 'news' or commentary concerning each of the other externalities listed above. 

That's not to say bitcoin is necessarily 'worthless', but it is not the idyllic ecosystem that fans claim it to be; and can't really be dubbed 'successful' until it's value is not subject to the wild swings we've seen to date nor at risk of being significantly undermined by any of the above externalities.



Monday, 5 December 2022

No, Really, Bitcoin Is Not "Money": Debunking Yet Another Bitcoin Sermon

Another day and another Bitcoin boost, this one so irritating I've been inspired to negate virtually every line... At this stage, surely the only reason why anyone holding or mining Bitcoin would lure new buyers is to get their own Bitcoins out. Rational justifications don't bear scrutiny, so the boosters' pleas tend to be couched in semi-religious rants that only require you to believe - as an act of faith. But try watching the WeWork documentary without thinking about FTX... That doesn't mean I'm down on distributed ledger technology in general. DLT has its use-cases, but its deployment should be approached like any other tech project, not a cult.

Debunking another Bitcoin sermon

Bitcoin is not "money". At best it might be a means of settling a trade between two parties (A and B), so long as each of them has an absolutely certain way to exchange their Bitcoin immediately with another party (C and D) for the agreed value of their trade in fiat currency. That might be possible in certain institutional scenarios - although even institutions got caught up in FTX - but very risky as a retail payment method, mainly because the price is so volatile. 

Bitcoin does not remove counter-party risk. Ask Celsius or FTX customers. And it's futile to claim it removes counter-party risk between A and B in the above example, when that risk remains between A/C and B/D - not to mention the wider cryptoverse, as still being illustrated by the collapse of FTX

Bitcoin transactions do happen faster than many types of retail and other payment methods which are settled over one or more days, since each block of transactions is completed in 10 minutes. But speed itself does not make Bitcoin appropriate as a retail payment method (as opposed to a potential settlement mechanism, as mentioned above). 

Bitcoin does not have an absolutely "incorruptible history", which could only be judged in hindsight anyway. Even if it initially seemed unlikely that any one miner or group of miners could create a new branch or 'fork', rising energy costs and periodic reductions in rewards have been driving concentration among miners (explained further below).

While the Bitcoin protocol itself may be 'trustless', that's actually a shortcoming or 'externality' that others have struggled - and consistently failed - to solve, at greater and greater cost as the ecosystem has grown. Ironically, therefore, it is kind of true to suggest that Bitcoin "is an impenetrable fortress of validation" (yet) "trusted third parties are security holes". The point is that Bitcoin does not exist in a vacuum. [For some reason I'm reminded of the Lewis Grizzard book: "Don't bend over in the garden, granny, you know them taters got eyes."]

Again, to blame "centralised exchanges and custodians" as "destroying everything that makes Satoshi's invention great in the first place" is effectively conceding that Bitcoin is worthless in any 'currency' other than Bitcoin itself. In other words, for all other practical purposes Bitcoin is worthless without a way of exchanging or holding it; so if exchanges and custodians 'destroy everything great about Bitcoin' then it must be worthless.

It's obvious and goes without saying that Bitcoin "is not a company. It can't go bankrupt. It has no CEO that can be influenced, arrested, or corrupted." This is just gaslighting. The same can be said of the USD. The fact is that the Bitcoin protocol must have a way of interoperating with the rest of the world and that necessarily involves contact with third parties and other forms of value, at which point Bitcoin's supposedly utopian benefits suddenly become externalities that must be addressed before Bitcoin can be useful. Success in negotiating and regulating that real world interface explains the relative strength, lack of volatility and broad acceptance of the USD and other major fiat currencies, compared to Bitcoin.

Similarly, it's a bit bizarre to say that "Bitcoin's monetary policy is set in time, not by decree. It can't be changed. It can't be argued with. It is unrelated to demand, unrelated to energy usage, and independent from politics." Miners are rewarded in Bitcoin, so it becomes critical to know the cost of mining each Bitcoin, as it would not be worth mining them if the costs could not at least be covered. Currently, the cost of mining a Bitcoin is considered to average out at $17,000 depending on where the miner buys the vast amount of energy required to mine each 'block' (itself a source of significant political controversy). At time of writing the USD price of Bitcoin was $17,220.25 (and, oh look, as at mid-October there were 276,000 Bitcoin mining rigs that had never been installed). The Bitcoin protocol dictates that mining rewards halve periodically and, on current forecasts, in 2024. Yet the maximum 21 million Bitcoins isn't due to be mined until 2140... Given that the Bitcoin protocol only launched in 2009 that's an awful lot of time and opportunity for it to grind to a halt.

But, sure, if Bitcoiners can stoke demand, the USD price of Bitcoin will rise again and profits can be extracted. Or energy costs might fall, efficiencies improve and/or mining might decline to constrain supply in the face of constant demand. Such factors would explain why miners have borrowed during past Bitcoin market troughs. But that's also left miners and their lenders with $2.5bn in loans that are exposed to wider market contagion following the collapse of FTX...  

In other words, the purity of the Bitcoin protocol is actually vulnerable to: the misconduct of exchanges, custodians and decentralised finance (DeFi) providers (and resulting distrust), rising energy costs, limits on computing efficiency and over-borrowing by miners. 

Now comes the crescendo of the sermon, which involves repeating a few truths from above...

We've already seen that Bitcoin is CERTAINLY NOT "an answer to the moral failings of fiat money and our fiat monetary institutions". Indeed, I agree that "Crypto" as an industry "is a reincarnation of ... failing [fiat money] institutions, replacing the friendly faces of clean-shaven bankers with the shy smiles of unkempt teenagers." 

The point is that Bitcoins are not divisible from the Crypto industry, any more than a 10 pound note is divisible from the wider fiat financial system. It doesn't matter whether "Bitcoin is honest, fair, and truthful" on its own, since it is not used or useful in splendid isolation.

Perhaps other implementations of DLT that do not purport to be any form of payment method (or e-money or security) may be divisible from the Crypto industry; but equally we should not be fooled into thinking that they do not have their own externalities and challenges in integrating with the 'real' world. Their implementation should also be approached like any other tech project rather than merely requiring a cult-like belief in their intrinsic benefits.

Bitcoin is as much a victim of the "game of liquidity and purchasing power" as any other commodity, and in some ways more so. Only the financially strong miners have survived, and to the extent that we have any idea who or where they really are, they appear to be based in the world's largest totalitarian regime: 

Due to the cryptocurrency’s design focus on privacy, there is no indicator of how many new coins are created from which location – hence why the figures provided here look at PC processing power, and not Bitcoin themselves. In 2021, the world's top Bitcoin mining pools all came from China, with five pools being responsible for over half of the cryptocurrency's total hash. 

The final tout is a promise of personal sovereignty, much favoured by Trumpsters and the Brexidiot Alt Right: 

"If you don’t hold your own keys, you don’t hold bitcoin—but IOUs. If you don’t run your own node, you have no say in Bitcoin—you are beholden to someone else’s idea of Bitcoin. For bitcoin to be your money, you have to hold your own keys, and you have to verify with your own node." 

Of course, anyone not holding their own keys or running their own node should be worried by this statement. 

But even if you have the skill, time and resources to rush home and engage with the process of holding your own keys and operating your own node, we have already seen that this process will not magically deliver "deep stability and autonomy" or make you "a sovereign individual" anywhere outside the Bitcoin protocol itself. In fact, depending on the real world's view of your identity and circumstances it may mean you're excluded from the 'real' world altogether, like those caught up in the Hell that is FTX group or North Korean hackers.

So why would somebody write such an overblown puff piece tempting newbies to exchange their cold hard cash for Bitcoin?

Probably so that they and their Bitcoin buddies can cash theirs out.


Sunday, 15 September 2013

Cryptocurrencies Crest Capitol Hill

On Tuesday, I had the pleasure of joining a panel on mobile payments at Liquidity, the summit on new finance. I also caught the earlier sessions, but sadly missed the afternoon. It was definitely worthwhile, and I'll include links to the videos when they're published. Well done to Stan and Edie for pulling the summit together.

One development in particular that caught my attention was James Smith's explanation of the wider uses of Bitcoins, and other cryptographic currencies. I actually struggle with the idea that these are really 'currencies' as opposed to commodities that can be bought and sold. That would also explain the volatility in the 'exchange rate'. But the technology definitely opens up some interesting possibilities.

One of the wider uses of cryptocurrencies involves agreeing that a unique string of numbers with a nominal 'value' (say, a sixteenth of a Bitcoin), represents the record of title to a specific asset. This use-case is reflected in colored Bitcoins, for example, where different coloured 'coins' respresent different types of asset. While we already have asset registers for many types of property, such as land, ships, cars and securities, there are many other types of asset for which a similar approach would be too expensive. Some of the challenges confronted by such a project from a technological standpoint are described here.

The proliferation of cryptocurrencies and their possible uses has generated  significant interest from the venture capital community, as well as amongst central banks, monetary authorities and agencies fighting financial crime.

Far from retreating before the threat of a regulatory onslaught, however, cryptocurrency service providers have been lobbying for some time to gain acceptance, (e.g. via the Bitcoin Foundation). Recently, the leading providers and supporters also formed the Digital Assets Transfer Authority, or DATA to concentrate and focus resources more efficiently and provide a forum for resolving appropriate controls for the shared operational and regulatory risks.

The fact that the future of cryptocurrencies have reached this level of official engagement definitely makes it an area worth keeping an eye on.


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