Live data from Hacker News

A faster, more efficient cryptocurrency

news.mit.edu

231–240 of 839 posts

Re: A faster, more efficient cryptocurrency

#231
post #56

Earlier quoted context omitted.

And the top 1% of the American population controls around 40% of the wealth. In accordance with the power law, the top 20% of the population owned 86% of the country's wealth. Still doesn't seem like a pipe dream.

Wealth, not money. Money is heavily regulated. Crypto are not.

That's circular logic. Wealth is equivalent to money.

Re: A faster, more efficient cryptocurrency

#232
post #200

Earlier quoted context omitted.

It depends on what you consider "side-step the law". If you encrypt your communication so no one can't read it, but the government didn't demand you not encrypt it.. are you side stepping the law? That's kind of what crypto is like buying regular stuff; you're protecting your money (it's value and your right to trade it as you see fit) even though no one is trying to take it at this particular moment.

I'm trying to find mainstream adoption drivers. Securing your money against possible future government intrusion is akin to prepping, hardly a mainstream way of life. Even the prepper community itself is more likely to stockpile gold and ammo instead of crypto currency. There isn't much room left in between the regulars and the preppers to provide demand for crypto currency.

The mainstream driver is going to be some form of 'disaster'. it can be as mild as 1970s style inflation or a 2008 style crash. It can be as severe as a long-ailing Brazilian Cruzeiro or 1998 Russian debt crisis. (People will bring up Germany or Austria after WWII but that really was a unique situation with reparations, occupation, and bad decision making).

Prepping makes sense to the mainstream once they experience a disaster. And those disasters are being manufactured even now by mis-management of debt.

Re: A faster, more efficient cryptocurrency

#233
post #160

Earlier quoted context omitted.

“First they think you're crazy, then they fight you, then you change the world.” - Elizabeth Holmes

I don't think she is the original author of this quote. Going to share another quote, which I think is relative here - “Those who are crazy enough to think they can change the world usually do.” - Steve Jobs

The irony is that she was a Steve Jobs fangirl, or copycat if you will.

Re: A faster, more efficient cryptocurrency

#234
post #38

Full disclosure: I work on the cryptocurrency in this article, Algorand. There are a lot of questions and speculation here about this paper and Algorand. I would be happy to try an answer them to your satisfaction. Some context may be helpful first, though. This paper is an innovation about one aspect of our technology. Algorand has a very fast consensus mechanism and can add blocks as quickly as the network can deli…

Are there reasons that e.g. Bitcoin and Ethereum and Stellar could not implement some of these more performant approaches that Algorand [1] and Vault [2] have developed, published, and implemented? Which would require a hard fork? [1] https://www.algorand.com/ [2] https://dspace.mit.edu/handle/1721.1/117821

My understanding is that PoS approaches follow normal byzantine agreement theory which states that adversaries cannot control more than 1/3rd of the accounts (or money in the case of algorand). You can also delay new blocks more easily.

Ethereum is scared or that so they are implementing some hybrid form.

Bitcoin is doomed from my perspective, because of the focus on proof of work and the confirmation times. When you realize that algorand is super fast, there is no "confirmation time", and there is no waste in energy to mine, then it is hard to back up any cryptocurrency focusing on proof of work.

Re: A faster, more efficient cryptocurrency

#235
post #211
post #38

Full disclosure: I work on the cryptocurrency in this article, Algorand. There are a lot of questions and speculation here about this paper and Algorand. I would be happy to try an answer them to your satisfaction. Some context may be helpful first, though. This paper is an innovation about one aspect of our technology. Algorand has a very fast consensus mechanism and can add blocks as quickly as the network can deli…

Q: How erosive is it to the image of cryptocurrencies that there's so many coins? It seems that every week there's a new coin that does XYZ better. Often, it has no infrastructure (hardware or software) other than a limited number of exchanges that are used as speculation.

Is that really a good question to ask someone who is pushing the state of the art in this domain?

Re: A faster, more efficient cryptocurrency

#236

>In experiments, Vault reduced the bandwidth for joining its network by 99 percent compared to Bitcoin and 90 percent compared to Ethereum, which is considered one of today’s most efficient cryptocurrencies. Ethereum is not considered one of today’s most efficient cryptocurrencies, not remotely. One of the most full-featured perhaps, but not efficient. Not even Bitcoin is since the invention of the MimbleWimble proto…

This is true. I would be interested in knowing the difference in approaches between vault and coda.

Re: A faster, more efficient cryptocurrency

#237

Earlier quoted context omitted.

The simple fact that you ask this question tells me you don't live in india, where a few years ago the government straight up deleted quite a lot of personal wealth by declaring the two largest notes worthless with mere hours of warning: http://time.com/4567605/india-currency-change-queues-delhi/ The original statement was: > I think there's value in reducing the politically privileged's means to dominate their power…

As long as you can't buy food or pay your electricity bill with any cryptocurrency, you haven't achieved any of these things. So the question becomes, why should the supermarket or the utility company accept crypto payments instead of dollars, when they know the former can lose 20%-99% of its value overnight, while the value of the latter is guaranteed to be kept stable by the government?

The key word in this discussion is potential.

Re: A faster, more efficient cryptocurrency

#238

Earlier quoted context omitted.

>In addition, if the network were ever to go offline, there isn't a deterministic way to get it back online. I haven't heard anyone say this about Algorand. Can you provide more details? Lets say a bug causes all the Algorand nodes to crash. After a patch is released 90% of the network comes back online. What prevents the selected users from arriving at consensus over the next block?

If the network goes down completely, as it's coming back up, groups of nodes will start adding blocks before all of the other nodes are back online. When connectivity is completely restored, you end up with different parallel chains, each of which thinks it's the main chain. With Bitcoin, there's a simple, deterministic way to decide which chain to trust: the one which has had the most work done it. With Algorand, it…

False. Algorand has safety, unless you get confirmation from 2/3 of the "money", you don't go forward. The best you can get here is a denial of service.

Re: A faster, more efficient cryptocurrency

#239
post #87

This gets asked often, but in case something changed recently - what are the use cases of cryptocurrencies that are not: - Attempts to side-step the law (however misguided the law is) - Trivial to do using a typical centralized database (e.g. Federal Reserver or VISA) - Tantamount to waiting for a greater fool to buy out the current players I am not looking for answers of the form "well whenever you want to avoid a t…

The original use case for cryptocurrency (eg digital sound money, not world computers and the like) is as a long-term (and hopefully independent and uncorrrelated enough) hedge against mis-management and failure of national currency regimes. That remains a legit use case but will take years or decades to materialize. Given that the tech is still in the early stages of its maturity curve and needs more time to robustify, that’s a good thing.

But national currencies are getting increasingly shaky, even the USD where it appears Congress has no political will to control the US national debt and deficit, and where the GOP blows bigger deficit holes with tax cuts and the Dems are talking about MMT. Not to mention the risks to the Euro and Yuan, along with the many smaller countries with distressed currencies.

It’s interesting to me that cryptocurrrency skeptics and critics seem to regularly ignore this as a use case, when in fact it is the most important one (maybe even the only one). It seems many people can’t bring themselves to believe that modern national currencies can fail and don’t need an independent hedge, even though the 1800s and 1900s were full of exactly that.

Re: A faster, more efficient cryptocurrency

#240

Earlier quoted context omitted.

Absolutely — I would gladly trade all my gains for a world where governments have no control over the creation and regulation of money.

A predetermined monetary policy would be great when a financial crisis or credit crunch hit, causing a collapse in the velocity of money /s While I have invested in crypto and believe it has great potential, one of its touted benefits by its supporters is also one of its biggest pitfalls, namely that its money supply is predetermined. The inability to actively manage a money supply given exogenous shocks to the econo…

I think it makes sense. You have an economy built on an economic model rather than an economic model based on an economy.

With the latter you're constantly guessing and tweaking the model and roughly every 10 years there's a crash and the economists say okay, NOW we have it perfect and we'll never get it wrong again.

Why do you need an unlimited money supply? The only thing causing these shocks is that the economy is doing whatever it wants and then the economic model collapses.

Post reply on HN