A Duke College finance professor, Campbell Harvey, has mentioned {that a} 51% assault on Bitcoin, lengthy dismissed as a theoretical train that might solely destroy worth for whoever tried it, has quietly change into one thing an attacker might revenue from due to right now’s derivatives markets.
Nevertheless, many BTC supporters dismissed the declare made in the course of the July 12 episode of Scott Melker’s Wolf of All Streets podcast, arguing that it ignores the sensible financial limitations that might possible cease such an assault.
Derivatives Have Modified Bitcoin’s Threat Profile
In response to Harvey, a 51% assault, the place a single entity features the bulk management of the Bitcoin community’s hash energy, has at all times been technically attainable however made little financial sense. It’s because an attacker would want to spend billions of {dollars} on mining {hardware} however would solely find yourself destroying the worth of the asset that they had simply compromised.
“Why would you spend billions investing in mining gear, take over the community, however the value of Bitcoin collapses to zero?” Harvey posited. “So that you spend all that cash and get nothing?”
However now, he believes that equation has modified, on condition that spinoff markets carry sufficient liquidity for an attacker to brief BTC earlier than launching an assault and revenue as the value falls.
“The distinction right now is the derivatives markets,” he informed Melker. “What you need to do is concurrently in the course of the assault take a brief place on Bitcoin, and with a brief the best consequence is that if the asset goes to zero.”
The professor did level out that the commerce must happen on offshore derivatives platforms because it amounted to blatant market manipulation. In his analysis paper titled “Gold and Bitcoin,” he estimated that such an operation would price about $8 billion, which is roughly 50 foundation factors of BTC’s whole market worth, though he framed the situation as a threat administration train and never a prediction, arguing that buyers ought to think about each credible risk as an alternative of dismissing uncomfortable prospects.
When requested the identical query, Grok estimated that anybody seeking to perform such an assault would want to spend greater than $10 billion on mining machines and about $1.3 million in electrical energy prices each hour. It additionally famous that any try would probably be detected instantly.
Apparently, Harvey doesn’t assume the identical situation can work on Ethereum. In response to him, since Ethereum switched to proof-of-stake, an attacker has to amass greater than half of the liquid ETH provide to regulate one-third of all staked Ether, which might quickly drive costs increased in the course of the try and get rid of the short-selling alternative he described for Bitcoin.
The educator’s criticism of Bitcoin went past its community safety, as he argued that the OG cryptocurrency is just too risky to qualify as a protected haven asset or dependable retailer of worth. He mentioned that value swings have stayed excessive even after years of market progress and deeper liquidity. On the time of writing, BTC was buying and selling close to $62,000 after slipping to close $61,000 final week following the renewal of hostilities between the US and Iran.
Bitcoin Neighborhood Pushes Again
The response on X to Harvey’s interview was principally dismissive, with market watcher David Levenson calling the professor’s take “a basic misunderstanding of how derivatives work.” One other listener, PrivateCoSaylor, argued that Bitcoin’s social consensus might reject blocks produced by an attacker, making the technique economically self-defeating.
Nevertheless, there have been those that aired totally different issues, together with pseudonymous dealer Toni, who famous that whereas the entire argument rested on revenue being the motive, the identical wouldn’t maintain if a nation-state or brief vendor merely needed Bitcoin to fail no matter any losses they incurred.
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