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You Do Not Need Blockchain: Popular Use Cases and Why They Do Not Work

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Re: You Do Not Need Blockchain: Popular Use Cases and Why They Do Not Work

#161

Earlier quoted context omitted.

> Most people who are even a little bit serious about working/investing in crypto, are well aware of this Not really sure how you can back up this claim. After hundreds of interacts with blockchain enthusiasts, I have observed that most of them subscribe to at least one of false use cases listed in the article, especially #7 and very often #1-3 and #6 as well.

Anyone can call themselves a "blockchain enthusiast" that doesn't mean they're smart or know what they're doing. Examples of good thinkers are the guys over at multicoin capital, a crypto focused hedge fund: https://multicoin.capital I don't agree with everything they invest in, but they have clear, logical theses

No true scots..erm. No true blockchain expert?

Re: You Do Not Need Blockchain: Popular Use Cases and Why They Do Not Work

#162
A guy I know believes himself to be an Ethereum millionaire. He's one of those guys that can't help injecting it into every conversation. It is completely insufferable. I. Don't. Give. A. Shit. About. Ethereum.

I don't think blockchain is worth a Tinker's damn and this guy would bellow "smart contracts" all the time without even understanding why his Spring Boot app failed to start up. Good luck with your millions.

I stopped talking to him. Problem solved, problem staying solved.

Re: You Do Not Need Blockchain: Popular Use Cases and Why They Do Not Work

#163

I've said this several times before on this site but will keep repeating it: there's exactly one use case where the blockchain is a superior (and, in fact, the only) solution: when you can't use contracts and the legal system to ensure trust between the parties. In other words, anything illegal. For any other conceivable use case, a database and a contract between parties are a superior solution. Edit: To clarify wha…

> It's literally how the world works. So the world works perfectly in your opinion? The good thing about blockchain is it lowers the cost bar for crazy expensive business legalize. It of course needs more work but a proper smart contract setup placed in front of a judge leaves little need for a dozen lawyers and business consultants to see the intent of the contract. The main issue is that the current very expensive…

How do I get the concept of "I'm buying stuff and it has to be fit for purpose" into a smart contract?

Re: You Do Not Need Blockchain: Popular Use Cases and Why They Do Not Work

#165
post #31

I've spent a lot of time doing consulting around blockchains for fortune 500 companies. Most technology choices are not a need. You can use MongoDB or MySQL in most cases. There are places where MongoDB has benefits, just as there are cases where a permissioned, immutable record has benefits. It's not a silver bullet, but it can add trust. This article seems to miss that creating immutable records of intermediary att…

What's wrong with using a RDS instance running Postgres configured to be append-only and immutable?

Re: You Do Not Need Blockchain: Popular Use Cases and Why They Do Not Work

#166

Earlier quoted context omitted.

But what if two banks are transferring money between themselves? Which bank owns the database? Why should the other bank trust that database?

Trusted third party owned by the banks, or providing audited services to the banks. Banks trust the third party because contracts are enforced by law as well as federal and industry regulations. Ain't no judge gonna throw up is hands and go "well, the smart contract says so, my hands are tied!". Blockchain doesn't solve anything where there is a functioning legal framework. You can't use technology to solve a problem…

It doesn’t solve anything if there isn’t a functioning legal framework either.

You still have to trust the other party will abide by the results of the smart contract.

If there is no legal framework they could just shoot you and have done with it, if they didn’t like the result.

Smart contracts and blockchains are still laws, just laws for people who don’t like some of the existing ones. Numerical rather than societal.

If there’s no rule of law, then blockchain laws can’t exist either.

Re: You Do Not Need Blockchain: Popular Use Cases and Why They Do Not Work

#167
post #66

Based on reading a few articles like this, I think my understanding of blockchain-related tech is different from other folks and I'm kinda confused. Could some kind soul help clear things up? When I think "blockchain", I basically think of a git branch: history is verifiably immutable and using some external tools like a public rng, one can prove that a block was not created before a certain time. When I think "distr…

blockchain's usually have all of these properties - linked log, digital accounting, proof of work, byzantine fault tolerance/consensus, crypto keys as identity, and sometimes smart contracts.

https://queue.acm.org/detail.cfm?id=3136559

Re: You Do Not Need Blockchain: Popular Use Cases and Why They Do Not Work

#168

Blockchain is a fractional reserve system which can be used as a payment layer. That's it. The whole point of blockchain tech is to create hype and incentivise collaboration towards a shared financially beneficial goal. Saying that blockchain has no use cases is like saying that money has no use cases. It incentivizes, it corrupts, it buys loyalties, it buys positive news coverage - These are the most important use c…

I believe you are saying "blockchain" here when what you are meaning is "cryptocurrency" such as Bitcoin.

My implicit point is that it's like trying to make the distinction between money and currency. There is a difference but since currency is basically the only meaningful use case for money, it doesn't really matter.

Re: You Do Not Need Blockchain: Popular Use Cases and Why They Do Not Work

#169

Earlier quoted context omitted.

I'm not saying: you don't need the blockchain because you shouldn't be doing bad things. I'm saying: you need the blockchain if and only if you are doing things that are illegal in your country. It's a decision criteria for when you need the blockchain. I'm making no moral judgement. And there are very good reasons to want to do things that your government deems illegal (for example, donating to a political organizat…

I can send 1 bitcoin from myself living in Minnesota to my friend living in Japan for the equivalent of $0.46. That's an improvement over the existing system. I don't have to trust anyone in between to get my money to him. How would that be as possible and as "trustless" without blockchain?

What are you trading the 1 bitcoin for? Given that the typical use case is to purchase some product or service (rather than just transferring bitcoin for fun), how do you secure that aspect of the transaction?

Re: You Do Not Need Blockchain: Popular Use Cases and Why They Do Not Work

#170
post #39

Earlier quoted context omitted.

The big problem with these kind of arguments is that is misses the interface between the real world and the blockchain. Say I have a blockchain that tracks births and deaths. Now if I see a record on there I can be assured it hasn't been tampered with. But that tells me nothing about how it was created - was the person entering the data acting with malfeasance? All blockchain does is audit the data after its creation…

That's why I said "intermediary attestations". I did not miss the interface between real world and blockchain. I did not claim that the records would be 100% accurate. What I'm saying is, when audited and we discover that someone provided bad data, we know who that was. That's how fraud claims work in general. Having a nicely packaged up list of who attested to what is nice. That's my point.

So we completely sidestep the difficult problem of ensuring truthful data in the first place but it's okay because we've got a really complex solution for replacing simple cryptographic signatures?
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