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lottin

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lottin
·3 か月前·議論
Statistical inference is based on random sampling. The data has to be random, otherwise it doesn't work.

I wrote another comment here clarifying my point, if you're interested: https://news.ycombinator.com/item?id=47566033
lottin
·3 か月前·議論
Imagine we want to know the ratio of men to women in a particular population. We could count all men and women one by one, but it would take too long, so instead we take a random sample and count the men and women in the sample, and from that we infer the quantity that we want to know. This is statistical inference.

In Bayesian inference, the population ratio is seen as a quantity that can take different values each with a associated probability (i.e. a random variable), and the result of Bayesian inference is an estimate of the probability distribution of the population parameter, in this case the population ratio. Now, in reality the population ratio is a concrete number, say 9-to-10, meaning that there are 9 men for every 10 women in the population. But Bayesians don't care. They'll tell you that the population ratio is a random variable which can take many values, and that the probability that it is equal to 9-to-10 is whatever number between 0 and 100%.

This is nonsense because the population ratio is NOT a random variable. People don't come in and out of existence randomly, right? In a way, they're saying there are infinitely many possible universes, each with a different population ratio, and then they come up with an estimate of the probability that the universe in which the ratio is 9-to-10 has whatever probability of occurring. This is absolutely BIZARRE. (I hope you agree). And it's wrong because it's impossible to know how likely one universe is compared to all other possible universes, since we live in our universe and this is all we can hope to observe.
lottin
·4 か月前·議論
> Bayesian inference assumes the observed data are fixed and aims to quantify the evidentiary support for all possible levels of treatment effectiveness based on the data at hand.

The problem with this approach is that we can only observe ONE level of treatment effectiveness, i.e., the level of treatment effectiveness that the treatment actually possesses. All other possible levels of effectiveness are entirely hypothetical. There's no data about all these other possible levels of effectiveness because they don't occur in reality. So the data cannot possibly tell you anything about how likely is the observed outcome, because the observed outcome is the only outcome that you observe. I

This criticism was made over 100 years ago, and Bayesians still don't have an answer. They just keep going as if nothing happened, but the reality is their methodology is utterly and fatally flawed.
lottin
·4 か月前·議論
> In Bayesian statistics, on the other hand, the parameter is not a point but a distribution.

To be more precise, in Bayesian statistics a parameter is random variable. But what does that mean? A parameter is a characteristic of a population (as opposed to a characteristic of a sample, which is called a statistic). A quantity, such as the average cars per household right now. That's a parameter. To think of a parameter as a random variable is like regarding reality as just one realisation of an infinite number of alternate realities that could have been. The problem is we only observe our reality. All the data samples that we can ever study come from this reality. As a result, it's impossible to infer anything about the probability distribution of the parameter. The whole Bayesian approach to statistical inference is nonsensical.
lottin
·9 か月前·議論
Retained earnings are not taxed per se. A company pays taxes on profits. Whether the profits are distributed to shareholders or retained makes no difference whatsoever as far as taxes are concerned.
lottin
·9 か月前·議論
How does exactly "breaking windows" improve the lives of people?
lottin
·9 か月前·議論
I can't imagine a situation in which I'd want to explain what I want to do on the command line to an LLM, instead of typing the commands myself.
lottin
·9 か月前·議論
I wish the scroll bar was a little less invisible.
lottin
·9 か月前·議論
As expected. This is why we don't use nominal dollars for measuring changes in prices over long time periods. It's meaningless.
lottin
·9 か月前·議論
I think it's just a meaningless sentence.
lottin
·10 か月前·議論
If I deposit dollars in a savings account I will get paid interest, but that is different from the dollar itself being an interest-bearing asset. I think the same thing applies to stablecoins. Does USDC pay interest to the holder or do I have to make a USDC deposit at Coinbase in order to get paid interest? Also, banks already offer a ton of products that generate yield. I don't see why a product that seems relatively similar to many products that banks already offer would destroy their business... unless such a product is much better than what banks offer, but that doesn't seem to be the case.
lottin
·10 か月前·議論
Considering that stablecoins don't pay interest to the holder, I don't know why anyone would be incentivised to move their funds into stablecoins.
lottin
·10 か月前·議論
Why would a stablecoin granting yield keep the banking system from working?
lottin
·11 か月前·議論
The whole point of working out is to stress the organism in order to induce a physiological adaptation. Inflammation is NOT the point, but rather an unfortunate side effect.
lottin
·4 年前·議論
Trustless financial instruments are not very useful to begin with, because finance requires trust (as does any economic activity). For example, there is no way to actually do financing (that is, trading future consumption for present consumption) without a trusted authority that has the power to re-allocate assets.
lottin
·4 年前·議論
This is not how you compare two industries. Comparing Visa to Ethereum, in terms of the value of the service that they provide, is not a problem at all, in fact it's very easy. For that we would use gross value added, which is the value of output minus the value of goods and services employed to produce such output. For example, in the case of Visa and Ethereum, the output is processing of financial transactions, and the market value of that output are the fees that customers pay to have their transaction processed. From that, we have to subtract the costs of all the resources employed by Visa and Ethereum to provide the service, respectively, to get the value added. These are all known quantities, which tell us exactly the market value of the services provided by these companies and/or industries, so that we can compare one with another. Market cap is absolutely irrelevant to that end.
lottin
·4 年前·議論
We tend to assume that people who are successful are also very smart, and this is often not the case.
lottin
·4 年前·議論
How can someone who is in "completely poverty" be trading NFTs? You made up the whole thing, didn't you?
lottin
·5 年前·議論
Of course, but that's not financing. If they post more collateral than the amount they're borrowing, the net amount borrowed is < 0.
lottin
·5 年前·議論
That's a lot of money being used in defi (whatever that means) but do you have a single example of financing through defi? Financing means providing borrowers with resources (such as money) that they don't already have. I think you'll have a hard time finding examples, because it turns out financing requires the ability to seize assets from a defaulting borrower, an ability which defi lacks.