Please don’t auto downvote before reading.
A little bit ago some asked a question about why the hate of the blockchain, and that got me thinking if there even was a legitimate use case where the blockchain would be beneficial, but I couldn’t think of one outside maybe some sort of decentralized bank, but before I knew I was thinking it would instantly turn into some crypto scheme and strapped it, because crypto currencies are a scam on every level – and no they aren’t private or secret as some think either.
So I wanted to ask the community. Instead of using the blockchain for crypto, is there a better use where the blockchain could benefit society?
It’s a reasonable technology choice for whenever you need to have a ledger that is shared between multiple parties. Blockchain gives you an immutable (un-editable) history of transactions, including who made it, what it was, and where/when it happened, and gives all of the parties who are allowed to edit the ledger a way to trust in the outcome, even if the parties don’t trust each other.
Let’s first state what the blockchain states it is:
- immutable
- public
- decentralized
Let’s say that you’re a user who wants to use the blockchain to manage something outside of the digital world with it. You create your product, and begin advertising it. No matter what this product is, it cannot affect the physical world. This means that immutability is a problem. The real world has mistakes. If a person sells their car, they need to hand over cash in the real world. How does that knowledge make it onto the chain? Same for a house, etc. Any object that has a transaction in the real world has to have an authority that manages whether that object has actually changed hands. So for the simplest use case, the chain has already failed.
Let’s talk about the next one: public. Nobody wants their transactions public. You don’t want votes to be public. The blockchain is not anonymous, no matter what anyone claims, because every record is tracked you can eventually deanonymize anyone if you wanted to. So this one is just a bald-faced lie and something not to be desired in any situation. The point here was to make it so that you can be decentralized and the public can be the ones to police others users of the chain, so let’s talk about how it’s fundamentally impossible for a chain to actually result in a decentralized world.
The blockchain is not actually decentralized. If you want to handle money in most countries on earth, you have regulatory bodies that govern everything about your operations. That means if you want to write an app like Shopify that someone can use to pay with bitcoin on a website, even if you are not selling something physical, you are still governed by a central body. Not only this, but once you want to sell something physical, you have to extract your money through a physical bank in the real world, which is also governed by the same regulatory bodies. This was immediately known as a problem in the early days of bitcoin and other cryptocurrencies, and it is still a problem today. This problem is not solvable as long as governments exist.
Funnily enough, each one of these elements does have use by itself! For example, distributed databases have been around for decades, and are the basis for much of the tech you use today. There are even immutable databases that are in use in many industries to keep an immutable record of what happened. AWS is sunsetting it now, but their QLDB was exactly that. CQRS with Event Sourcing is another implementation of the same idea. Finally, any government service or company could make records public if they want to. In fact many already do, for example home ownership records. If you own a house, that information is not private.
Putting something on the blockchain is no more than a move to make sure whomever owns that crypto gets more money out than they put in. If an actual use case existed for this tech, it would have been used decades ago when it was first invented (the blockchain was actually invented in the 80s by cryptographer David Chaum, decades before Satoshi invented Bitcoin and it was even discussed in Satoshi’s whitepaper).
I can talk for hours about how each element of the blockchain is just either a grift to extract money from others OR a cynical, incorrect outtake on how the real world functions. If you want that, let me know.
Nobody wants their transactions public.
This is a broad generalization that is easily refutable. Examples:
- Property titles
- Political campaign contributions
- Supply chain certifications, to fight consumer fraud and counterfeitting.
Frankly, you say you can talk for hours on the subject, but I don’t think that hours of thought has been given to the subject.
I’m pretty blockchain neutral. I took an interest in it at one point, did some graphics work for a few companies so I learned the ropes. So yeah, I agree with the statement that OP’s making a few leaps in logic.
There are a lot of corrupt as fuck companies working in blockchain because of a weird cryptobro need to reinvent the wheel of finance, but blockchain is still kinda neat. Sending funds internationally is easier, in my experience. Moving funds across borders can be a pain in the ass through a bank if you don’t do it often - with crypto it’s a few clicks.
This is from my old crypto knowledge before I stopped working with those folks, but there was a company in africa that launched a mesh network that spanned across multiple countries, using crypto as both the payment and the fee for spreading the signal or using it. Then there were at least a couple cases of people securing control of personal, sensitive media by tokenizing it as an NFT - which I understand was done as a faster and cheaper alternative to copyrighting internationally.
Again, I can not state enough how not a crypto bro I am, because it seems like standing in the middle of the road makes me too block-chain friendly for the internet. I’ve been involved peripherally to a few things that made me go “Huh, that’s actually pretty cool.”
Nice explanation, thanks. I would read more.
Do you also have brief, pointed argument against crypto/blockchain that you use in casual conversation? The subject comes up fairly frequently and I know it’s all bullshit but I usually struggle to explain why. What key points would you make to people who might be starting to get seduced by the hype or who are already sucked in?
Not OP, but in my circles the simplest, strongest point I’ve found is that no cryptocurrency has a built-in mechanism for handling mistakes. People are using these systems, and people make mistakes. Without built in accommodations, you’re either
- Creating real risk for anyone using the system, because each mistake is irrecoverable financial loss, and that’s pretty much the definition of financial risk, or
- Encouraging users to subvert the system in its core functionality in order to accommodate mistakes, which undermines the entire system and again creates risk because you don’t really know how anything is going to work with these ad hoc side systems
Either way, crypto is just more costly to use than traditional systems when you properly factor those risks. So the only people left using it are those who expect greater rewards to offset all that additional risk, which are just speculators and grifters.
Besides other refutations, I’m going to refute the fact that blockchain requires those three points.
Block chain is a shared incremental ledger in it’s essence. Since its inception banking systems have adopted it to have shared ledgers between them to manage transactions between them in a secure way, without fear that the ledger has been tampered by some bad actor of the other bank, since the history of transactions is shared in a way that can’t be tampered without alerting both parties.
So yeah, that. Banks adopted it pretty quickly to be used in transactions. The way you describe immutability is incorrect, you can mutate the current state into the next one, you just can’t mutate past transactions. This example is very much not public, just shared between two private individuals, so not public either. I guess you can call it decentralised too.
You keep calling it “the block chain”, when blockchain is just a name for a technology, a chain of blocks of information condensed incrementally in the next block, that’s it. You are thinking too hard about it.
Edit:
Funnily enough, each one of these elements does have use by itself! For example, distributed databases have been around for decades, and are the basis for much of the tech you use today
Decentralised != distributed, a biiig !=. Decentralised implies that there’s no main/master node coordinating operations, there’s no main authority. whereas in distributed systems, the ones you mentioned anyway, there’s always a main node coordinating what worker nodes do, worker nodes act on what the main node, there’s a very clear authority role.
I’d say in theory it could be used something like public records of proof for ownership of immaterial or intellectual property and the transfer thereof. Say the rights to music, writing, digital art and whatnot. Like the essence of NFT without the hyped up crypto bro speculation and pump’n’dump.
The difficulty would be to get it recognized as legally valid and the bigger difficulty that as there is no central authority there is also nobody being able to rectify fraud or user mistakes. If you implement central authority it’s basically just any old list of transactions with some extra crud so then the question would be why even bother.
Just fraud. Nothing else.
A blockchain is just a list of records. You put data in it, and you have some script that ensures the data is internally valid. For example, with cryptocurrencies you can’t allow a transaction that causes a balance to be less than 0. A blockchain containing such transaction is invalid.
This is nothing particular. You can do this with most data records.
What’s unique about blockchain is that if you have two blockchains, both are internally valid but have records that disagree with each other, then you have a way to decide entirely by yourself which one you should prefer. For example, with Bitcoin you choose the blockchain with most “work”. No need to ask some third party about which one you should prefer.
And that’s where it falls apart. These situations are rare. There might be a few niche cases. I haven’t heard of any use case that’s particularly convincing to me.
The most attractive part about blockchain is the decentralized ledger showing each transaction made.
I feel like greater minds than mine could come up with a way to use that to fight government corruption. Every transaction is a matter of public record.
I doubt it’s really a practical solution though. Each transaction makes each subsequent transaction more computationally expensive. Plus all these vendors and contractors and everything are accustomed to fiat currency. Likely, they’d just immediately exchange it for cash.
This of course doesn’t tackle the issue of under-the-table corruption where you invite a senator out for lunch and kickbacks. I’m also sure that the government would want to maintain their own ledger, or that conniving people will find a way to cook the books anyway.
I believe alternative methods of validating blocks (series of transactions) such as Proof-of-stake, instead of the vastly more computation and energy-intensive proof-of-work that Bitcoin uses would largely address the issue of computational expense. There are other methods of increasing efficiency and speed of processing as well such as the use of more efficient ‘layer 2’ mechanisms for processing blocks. I remember reading about these and their implementation when I was researching cryptocurrencies out of curiosity. I believe Ethereum and some others have largely implemented these. The decentralized applications aspect of Eth was super interesting to me as well. Basically, you can program software to run on the blockchain which can make it nearly impossible to shut down by a centralized authority so long as the network is sufficiently decentralized. Some of the programmable money (so-called decentralized finance or ‘DeFi’) apps are pretty interesting as well in terms of enabling more people to utilize the more complex financial instruments that Wall Street firms have been using for years. Of course, a lot of that has turned into a Wild West of scams and ‘rug pulls’, not to mention massive targets for hackers who try to exploit vulnerabilities to steal millions so buyer beware for sure.
The most attractive part about blockchain is the decentralized ledger showing each transaction made.
This is probably the key thing. Let’s say that you wanted to purchase a home in Turkey but you live in Canada (just play along). A transaction on the blockchain can show a verified transfer of funds, record the purchase and act as proof of ownership.
As you mentioned, the big issue is computational expense.
But is this actually a problem. Does people go around now and need proof that they bought some property?
To me it seems like blockchain is a solution looking for problems that doesn’t really exist.
It is a problem. I used a very specific situation, but the need is there. That said, is blockchain the best solution for an ever shrinking planet? That’d be a no.
