FaceDeer

joined 1 year ago
[–] [email protected] 2 points 9 months ago

It's because proof-of-stake is fundamentally different from how proof-of-work operates.

The fundamental problem that all blockchains need to solve is something called the Byzantine Generals Problem. A blockchain needs to consist of a list of transactions that everyone agrees on - everyone needs to be able to know which transactions are part of the list, and what order they appear on that list. But there can't be any central "authority" making that decision, it has to be done in a completely decentralized way.

The way proof of work does it is that it requires people adding transactions to the list to do some extremely expensive calculations and attach the results of those calculations to the transactions that they're adding. Anyone can do those calculations so there's no central authority, but the costliness of the calculations means that once the transactions are added it becomes just as expensive to create a substitute set of transactions. So everyone ends up agreeing on what transactions were added because it would be unfeasably costly to "fake" an alternative history to the blockchain. This means it's impossible to make a proof-of-work chain that isn't hugely "wasteful", because the waste is the point of it. It has to be costly for it to work.

Proof-of-stake takes a very different approach. It solves the same basic problem - determining which transactions are part of the chain in a decentralized manner - using some very fancy cryptography that I have to admit that I don't fully understand. But instead of proving that the transactions you're adding are "trustworthy" due to proving you've wasted a whole lot of resources adding them, you do it by putting up a "stake." You lock a big sum of money in your cryptocurrency staking account and essentially make it a hostage to your good behaviour. If you put up a bad transaction you can lose your stake. So under proof-of-stake there's simply no need to burn huge amounts of electricity.

Monero uses a proof-of-work algorithm like Bitcoin. The reason Monero doesn't use anywhere near as much energy as Bitcoin is simply because it isn't worth as much and so not as many people are mining it. If Monero was worth as much as Bitcoin the energy usage would rise to become comparable.

[–] [email protected] 3 points 9 months ago

I've only been fiddling around with it for a few days, but it seems to me that the default settings weren't very good - by default it'll load four 256-character-long snippets into the AI's context from the search results, which is pretty hit and miss on being informative in my experience. I think I may finally have found a good use for those models with really large contexts, I can crank up the size and number of snippets it loads and that seems to help. But it still doesn't give "global" understanding. For example, if I put a novel into LocalDocs and then ask the AI about general themes or large-scale "what's this character like" stuff it still only has a few isolated bits of the novel to work from.

What I'm imagining is that the AI could sit on its own for a while loading up chunks of the source document and writing "notes" for its future self to read. That would let it accumulate information from across the whole corpus and cross-reference disparate stuff more easily.

[–] [email protected] 2 points 9 months ago (2 children)

I'm thinking a potentially useful middle ground might be to have the AI digest the documentation into an easier-to-understand form first, and then have it query that digest for context later when you're asking it questions about stuff. GPT4All already does something a little similar in that it needs to build a search index for the data before it can make use of it.

[–] [email protected] 8 points 9 months ago (2 children)

And yet there are still hobbyists. We only "live under capitalism" to the extent that we have to, people still do things for reasons other than money.

[–] [email protected] 2 points 9 months ago (2 children)

I'm no fan of Bitcoin, but often the energy they use from hydro plants is energy that would literally be wasted otherwise. A hydro dam can't control how much water is entering the reservoir, so if there's more water entering the reservoir than is needed to generate electricity for the current demand then the dam will need to just throw the extra water away. Trying to transmit the electricty to remote markets can be an alternative, but that costs resources too and isn't always practical.

[–] [email protected] -3 points 9 months ago

Probably, but Ethereum does a lot of things that Visa can't. Visa transactions are exceedingly simple. It was just the only generally comparable thing I could think of that I could get energy figures for, do you know of any better examples?

[–] [email protected] 2 points 9 months ago (5 children)

Current AI can already "read" documentation that isn't part of its training set, actually. Bing Chat, for example, does websearches and bases its answers in part on the text of the pages it finds. I've got a local AI, GPT4All, that you can point at a directory full of documents and tell "include that in your context when answering questions." So we're we're already getting there.

[–] [email protected] 2 points 9 months ago (4 children)

People who make content for money are suffering from a collapse in ad prices. There are people who make content because they enjoy making and sharing content.

[–] [email protected] 17 points 9 months ago (6 children)

Why is it "a lot for a virtual currency?" What's the typical energy usage of a virtual currency?

In 2019 Visa used 740,000 gigajoules of energy, which is equivalent to 6727 households (google dug up a figure of 110 Gj/year for that). So this really doesn't seem like a lot for this kind of thing.

[–] [email protected] 1 points 9 months ago (1 children)

I’m not sure I get the point. Company is a broad term. I don’t see how MakerDAO is not a company.

Company is actually not a broad term, it's a legal term with a specific meaning. MakerDAO is not a company, it's a smart contract. If you want to use terms that loosely it's going to be difficult talking about this stuff.

Using crypto-tokens is simply a technologically vastly inferior way of tracking debts, not a new currency.

But ultimately that's the thing that you're arguing here, so you can't simply state it as a premise. That's the classic meaning of begging the question.

The apparent fraud is the only way this makes economic sense.

That came out of nowhere, this is the first time an accusation of fraud has shown up in this discussion. What fraud?

[–] [email protected] 7 points 9 months ago (13 children)

Why does everything have to be about money?

[–] [email protected] 1 points 9 months ago (1 children)

Then I guess I won't see whatever websites decide to use it (until it's cracked). Oh well.

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