HN user

ucha

2,652 karma

Quant trader. Former software engineer. Mathematician by training.

Posts122
Comments279
View on HN
www.wheresyoured.at 7mo ago

Nvidia Isn't Enron – So What Is It?

ucha
2pts1
arxiv.org 1y ago

Can LLMs make trade-offs involving stipulated pain and pleasure states?

ucha
1pts0
www.bbc.com 1y ago

US man jailed for cloning giant sheep for trophy hunting

ucha
36pts30
www.economist.com 1y ago

Mario Draghi outlines his plan to make Europe more competitive

ucha
3pts1
nautil.us 2y ago

What Physicists Have Been Missing

ucha
3pts0
www.nytimes.com 2y ago

How Does the Largest Hedge Fund Make Its Money?

ucha
3pts1
en.wikipedia.org 2y ago

Atomic Gardening

ucha
18pts1
www.cryptomuseum.com 3y ago

CryptoPhone Implant

ucha
2pts0
www.jstage.jst.go.jp 3y ago

Adverse Effects of Wi-Fi Radiation on Male Reproductive System

ucha
3pts1
dirtybubblemedia.substack.com 3y ago

The Binance Scam Chain

ucha
10pts0
webcache.googleusercontent.com 3y ago

Sam Bankman-Fried Has a Savior Complex–and Maybe You Should Too

ucha
2pts2
cryptohayes.medium.com 3y ago

Speechless

ucha
1pts0
www.cell.com 4y ago

Multiple Early Factors Anticipate Long Covid

ucha
2pts0
www.ft.com 4y ago

The Coinbase model: profit from the crypto assets it lists

ucha
3pts2
www.quantamagazine.org 4y ago

The Year in Math and Computer Science

ucha
2pts0
www.medrxiv.org 4y ago

Comparison of two highly-effective mRNA vaccines for Covid-19 vs. Alpha/Delta

ucha
1pts0
www.wsj.com 5y ago

Startup Claims Breakthrough in Long-Duration Batteries

ucha
1pts1
www.creativebloq.com 5y ago

Is one of Apple's newest iPhones already doomed?

ucha
1pts1
www.france24.com 5y ago

China executes ex-banker Lai Xiaomin in corruption, bigamy case

ucha
2pts0
arstechnica.com 5y ago

Covert microwave weapon “most plausible” cause of Cuba “health attacks”

ucha
1pts0
chinadialogue.net 5y ago

China’s coal capacity surge need not be at odds with ambitious climate action

ucha
1pts0
twitter.com 5y ago

Tesla FSD beta rollout happening tonight

ucha
4pts0
www.bloomberg.com 5y ago

Japan’s lost generation is still jobless and living with their parents

ucha
286pts341
www.theguardian.com 5y ago

‘There is a fear that this will eradicate dwarfism’: controversy over a new drug

ucha
3pts0
projects.tampabay.com 5y ago

Pasco’s sheriff created a futuristic program to stop crime before it happens

ucha
4pts1
stratechery.com 5y ago

Antitrust Politics

ucha
1pts0
www.thelancet.com 5y ago

Cerebral Micro-Structural Changes in Covid-19 Patients

ucha
17pts2
www.bloomberg.com 6y ago

Did a Chinese Hack Kill Canada’s Greatest Tech Company?

ucha
11pts1
www.youtube.com 6y ago

[video] Fighter Pilot Breaks Down Every Button in an F-15 Cockpit

ucha
1pts0
www.nytimes.com 6y ago

Malaria Drug Promoted by Trump Did Not Prevent Covid Infections, Study Finds

ucha
6pts1

n=56 doesn't give you much information regarding the margin of error, unless you practice Tarot Reader's cat science. The standard deviation of outcomes and the difference between both outcomes matter just as much.

If I flip a coin 56 times and it always falls on head, I can be pretty much certain that it's not a fair coin. I wouldn't need to flip it 1000 times. We are all someone else's "know-nothing hack"...

Can we know for sure that the price drop is accompanied by a change in the model such as quantization?

On twitter, some people say that some models perform better at night when there is a less demand which allows them to serve a non-quantized model.

Since the models are only available through API and there is no test to check which version of the model is served, it's hard to know what we're buying...

You can have growing deficits without actually "selling the nation" when you account for growth and inflation.

Say foreigners own 50% of US assets. When someone creates in the US a company ex nihilo and sells 10% of it to foreign investors, even though foreigners bought more US assets, this new wealth creation causes the % of foreign-owned US assets to diminish.

When foreign investors own US bonds, as inflation increases and the money supply increases, they end up owning less in real terms.

This doesn't account for investments that are limited in quantity such as real estate.

Also just because those are opposing forces, doesn't mean that foreign ownership wouldn't increase. As a matter of fact, when looking at the foreign ownership of US stocks, it has been steadily increasing.

Claude 2 3 years ago

Wow this sounds like they trained it on ChatGPT outputs.

However I could not reproduce this output.

Thanks for explaining this!

It seemed to me that option #1 only applied if you were a fugitive and your whereabouts were unknown, not when you simply leave the state or country.

As to furtherance, I wonder how precise the definition of it is; is using proceeds of a crime, furtherance of a crime? Is obfuscating a crime, furtherance of a crime?

Edit: This answers most of my questions and the answer seems to be "it's complicated" https://sgp.fas.org/crs/misc/RL31253.pdf

The statute of limitation for wire fraud is 5 years. How did he get charged under that statute when he stole funds from Silk Road in 2012? Did they charge him for converting BCH into BTC in 2017?

I tried to look up the case but couldn't find anything that shed a light on that.

GPT-4 3 years ago

I tried playing blind chess against ChatGPT and it pretended it had a model of the chess board but it was all wrong.

As a third-worlder I welcome these jobs. They lower unemployment, raise average salaries, haggling power, increase the country's foreign currency reserves... Our minimum wage is similar to Kenya's and $1.46/hour after tax is way above the around 80c minimum.

It could make sense from an environmental perspective to produce and consume locally but for a job like this, the only reason to use US nationals would be to create local jobs.

How can you say it's clear it wasn't cash? What's the source?

Also, FTX minted FTT out of nothing - effective cost zero - so no matter what they received in exchange, even if they had received nothing that is not an investment unless they received Alameda equity. I agree that lending is a form of investment but nothing says that they received a loan in exchange.

You could still be right, but it's all speculation :)

Nowhere does it say that FTX invested in Alameda.

Alameda invested in FTT which is minted by FTX which is not the same thing.

SBF said "We don't invest client assets (even in treasuries)". [0]

He then says the purpose of the transaction with Binance is to "clear out the liquidity crunches". [1]

How could there be a liquidity crunch if assets are not invested? You can't do a bank run on an entity that doesn't function as a bank and doesn't invest clients assets... Something is shifty.

[0] https://twitter.com/sbf_ftx/status/1589598285798707202

[1] https://twitter.com/sbf_ftx/status/1590012126701441025

I get a couple of gallons of olive oil in a small village directly from the press in November each year. It's not filtered so it has a lot of particles in suspension and it goes bad faster, maybe after a year or so. But it tastes nothing like supermarket extra-virgin olive oil, the taste is so much more concentrated.

Olive oil has a pretty short shelf life. The best way to get the good stuff is to make sure you buy:

- the latest harvest (they're usually harvested in early fall)

- non-filtered

- stored in a dark bottle, somewhere cool (light oxidizes it)

- single origin (if it's not, then they're likely mixing old rancid and new oils)

- first press, cold extracted

The fact that they closed his account frankly sounds like the outcome of an AML review.

Banks are deputized by the government to check for all sorts of suspicious transaction. They get fined when their procedures are not sufficiently stringent. They're not allowed to tip you as to why your account is being suspended or closed.

At any moment, any bank can lock your account for months without informing you of anything. It's unfortunately the power we decided to give them to prevent money laundering.

Fuel cost, depending on routes, number of business seats, seat occupancy is at about 25% of total costs [0]. 75% is what you call epsilon? Aircraft speed as barely budged since we transitioned from turboprop to jets. That's something you could call epsilon.

You're right that they start with business seats because they cost more. Business class seats cost 3-4x time economy while occupying less than 2x the space so the cost of fuel as a percentage of the ticket price is lower. It might not be obvious to you but I'm happy to explain it :)

[0] https://www.mckinsey.com/industries/travel-logistics-and-inf...

That doesn't have much to do with the point I'm making. I'm saying if you double fuel usage, you don't double the cost of using the plane.

As cost of fuel is only a percentage of the price of the ticket, it's pretty obvious that there is a threshold as a percentage of total ticket cost under which spending 4x more in fuel to fly say 1.5x more passengers (because the airplane isn't flying 24/7) makes business sense.

That is obviously one of the reasons why they are starting with business class tickets because, fuel consists of a smaller percentage of ticket cost.

To everyone saying this will not work because it's more expensive... jets were more expensive than turboprops. And even though the former use more fuel, we prefer them.

The costs of flying an airplane isn't proportional to its fuel usage. The faster an aircraft is, the more flights it can perform per day.

The carbon emissions impact of flying a gas-guzzling supersonic aircraft aren't evident either. Of course, more gas is used per trip but fewer planes need to be manufactured. Since there is no supersonic business jet, it could also make sense for some people who used to fly private for the speed and convenience to reconsider as they may get faster to their destination by flying supersonic.

This makes so little sense to me. I don't know how much information is made public by the Dutch justice system but I would really like to see an affidavit or something like it to understand what specific charges are levied against that developer.

On sustainable energy sources: I, as many other germans, receive all of my electricity from purely renewable energy sources for more than ten years now. 24/7.

How can you receive energy purely from renewable energy sources when the wind doesn't blow and the sun doesn't shine? Germany doesn't have any significant capacity for electricity storage. It's such a bold statement but it seems physically impossible.

1. Your article on nuclear energy just says that France has reactors that need maintenance. It also says they produce less electricity because they need cold water which is not currently available because of heat waves and droughts. Both are temporary problems that can be planned around or avoided by over-provisioning capacity. As the original article notes, you cannot over-provision capacity with renewable energies because they tend to produce 100x less power on windless or cloudy days.

2. It's more efficient to burn gas and collect the heat for industrial processes that go through an intermediary step of converting heat into electricity. I don't think it has anything to do with gas being irreplaceable as a source of heat. Gas can be necessary as a chemical precursor in some reactions - which can't be replaced by electricity - but that has nothing to do with heat.