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ucha

2,705 karma · joined October 22, 2012

Quant trader. Former software engineer. Mathematician by training.
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ucha··on Europe's Vaccine Disaster
That's not even true when looking at deaths per capita (because how is total deaths relevant?) If you remove micro-states, the top 5 in deaths per capita is:

1. Belgium 2. Slovenia 3. UK 4. Czech Republic 5. Italy

4 out of 5 are in the EU.

Source: https://www.worldometers.info/coronavirus/

ucha··on Europe's Vaccine Disaster
I'm using the only statistic that matters, the percentage of the population being vaccinated. https://ourworldindata.org/covid-vaccinations

If the goal of vaccination is to stop the propagation of the virus, all the other possible metrics you cited are irrelevant.

Which shady tactics? Not being 3 months late to place an order?

ucha··on Europe's Vaccine Disaster
The EU is 3x worse than the US, 4-5x worse than the UK and about 20x worse than Israel. It's one of the few - maybe the only - developed "countries" that has both a record number of cases and low vaccination rates. How is that not bad?

A lot of pro-EU people refuse to blame to commission because they see it, justly, as a vindication of the Brits who warned of the EU bureaucracy when they left. But IMO, being pro-EU starts by naming the problems in the commission so that they can be fixed.

ucha··on AstraZeneca/EU contract
In 7.1., when they say the EU will provide funding at an amount equal to the "cost of goods", does it mean that AZ doesn't make profits on the vaccine they sell to the EU?

There is also a mention of a cost of good estimate and how if the cost of good was off by more than 20%, the EU should pay the difference...

ucha··on Robinhood is limiting purchases of stocks: AMC, Blackberry, Nokia, and GameStop
Robinhood sells their order flow to Citadel.

Citadel is financing Melvin Capital's GME short. The financing terms are private but whether they just lent them funds to cover the margin calls or actually hold their short positions until the storm passes for a fee, it is absolutely in their interest to prevent GME from continuing to skyrocket. Drawing a collusion between Citadel and RH isn't that far-fetched but I obviously have no insider knowledge of this.

Most brokerages sell their order flow and Citadel trades 25% of the equities market in the US, from memory. Schwab, which also sells order flow to Citadel, requires 200% margin to go long GME which makes no sense since at most, you can lose 100% of your bet.

This is not what free markets are supposed to be like.

ucha··on Boeing 737 Max cleared to fly again 'too early'
Airbus seems safer from your link?

They never had a crash on any of their newer models, A380, A350 and neo variants. The vast majority of flights are performed in 737s and A320 variants and the crash rate is 0.09 for Airbus vs 0.24 for Boeing.

[edit]: actually excluding planes produced before the 737NG in 1984 and the 737 max, the 737 crash rate is 0.11 which is still slightly higher than Airbus.

ucha··on Intel’s 8-Core Mobile Tiger Lake-H, at 45 W, to Ship in Q1
Those used 28W variants. 45W was for 15" and above from what I remember.
ucha··on Laptop stolen from Pelosi's office during storming of U.S. Capitol, says aide
Those were the terms we used at an investment bank but I imagine different institutions use different classifications.
ucha··on Laptop stolen from Pelosi's office during storming of U.S. Capitol, says aide
It's usually the second lowest security level, just above "Public" and below "Secret".
ucha··on DOJ fines Boeing over $2.5B, charges it with fraud conspiracy
It has been estimated VW caused 59 early deaths in the US and probably a lot more people got sick etc... so not exactly negligible. However, I agree with the general point of your comment.

https://iopscience.iop.org/article/10.1088/1748-9326/10/11/1...

ucha··on Covid: France rewards frontline immigrant workers with citizenship
It's simpler than that in some cases, only 2 years of residency are needed if you're going to uni there.
ucha··on Why can’t you buy a good webcam?
The same way there is a protuberance to fit large lenses on the back of phones, there should be one on top of laptop monitors. The exterior of the laptop wouldn't change but we would be able to get a smartphone-like camera in a laptop. Add in features such as an led strip to improve lighting, market the product to people who use their laptop mostly for video conferencing and that surely would be a hit.
ucha··on Justice Dept files suit against Facebook for discriminating against U.S. workers
I'm not surprised by this at all.

I used to work in the US at at a large international bank with headquarters overseas that preferred having employees from the same country as HQ. We would advertise a position, internally or just to alumni networks of unis there. Once we interviewed people and knew who we wanted to hire, there would be a delay because HR would have to advertise the position publicly for at least a week (or two, I forgot), and then we could proceed officially with the hire.

ucha··on AI researcher Timnit Gebru resigns from Google
Timnit Gebru has a BSc, MSc and PhD in electrical engineering all from Stanford. She did actual electrical engineering work at Apple previously. Maybe it's hard to believe but she's not just another SJW.

The idea that companies only need to do maximize shareholder value isn't that old and was only popularized in the 80s. If you restrict creating value to that, then maybe she didn't create any at Google. But maybe Google wants to create a software that works equally well for everyone and raising the issue of IA biases would have helped achieve that goal.

ucha··on 2020 Mac Mini – Putting Apple Silicon M1 To The Test
You can't run Linux on Macbook Pros released after 2016 in any meaningful sense anyways...
ucha··on Apple Silicon M1 Emulating x86 Is Still Faster Than Every Other Mac
They're comparing single-core perf
ucha··on macOS Big Sur
I'm using AdGuard and it covers pretty much everything and is very customizable, including the annoying "accept cookies" banners that we have in Europe.
ucha··on Playstation 5 review: Not just a more-powerful PS4
Interesting... I didn't expect people to spend that much on games as I do sometimes wait for sales or buy used, and even sell back back disc games I'm done with.
ucha··on Playstation 5 review: Not just a more-powerful PS4
Is the gamepass incredible value? If you keep the console 7 years which is about its expected lifetime, would you expect to spend $840 in games?
ucha··on VPN by Google One
I understand why no one would want to trust Google and after Snowden's revelations, I don't see why anyone should.

But when it comes to the largest VPNs such as ExpressVPN or Nord VPN, it is impossible to tell who is truly behind them. You cannot put a name on physical person in charge which is very worrying. And since the NSA is known to use front companies to spy on people [1], why couldn't they be behind all these other VPNs? At least, we know who runs Google.

[1] https://web.archive.org/web/20131016033046/http://www.foreig...

ucha··on Covid: Remdesivir 'has little or no effect' on survival, says WHO
Martin Landry: "People will argue about the need for earlier use (possibly) or that with even more data there may be a benefit (possibly - but where are those trials going to come from).

But the effect is modest at best - and so far there is no strong evidence it is there at all."

But it doesn't follow at all that because there is no effect when administered late, the effect, if administered early, is modest as best. In fact, there are many medication that are very effective if administered before the first symptoms appear and are completely useless after. If you get exposed to rabies, you can get a rabies vaccine and have close to no chance of contracting it, whereas if you get a vaccine after you develop symptoms, you're almost certain to die.

Similarly, the flu antivirals are somewhat helpful if taken early but have no effect if taken too late.

ucha··on Hal Finney’s proposal for optimizing Bitcoin to be enabled in Bitcoin Core
There will be energy savings for the nodes that have a copy of the blockchain and need to verify transactions but not for the miners.

Market forces fundamentally tie the energy consumption of the miners to the price of bitcoin.

ucha··on Nikola CEO Trevor Milton Resigns
GM didn't pay $2B. They took a $2B stake in Nikola and agreed to be remunerated to manufacture their truck by using their electric battery tech which they were working on regardless of this deal.
ucha··on AMD Announces Ryzen “Zen 3” and Radeon “RDNA2” Presentations for October
I was on the market for a GPU and I would agree with you and wouldn't say it's confirmation bias. On Amazon, most Radeons have 3.5 stars vs 4.5 for Geforces; many reviewers say they purchased a Radeon only to return it later because of driver issues.

Also, as the owner of Macbook 16" with a Radeon 5500M Pro, I'll add that I find the bootcamp drivers much subpar. They're also rarely updated although the issue seems to be Apple there.

ucha··on Modeling a Wealth Tax
By that line of thinking why not tax the poor to give to the rich, that would accelerate economic growth, wouldn't it?
ucha··on Pavel Durov on the TikTok Sale to U.S. company
A free trade agreement must be abided by both parties.

By prohibiting Chinese companies from operating on US soil, Americans aren't renouncing their values or losing the moral high ground as long as companies from other free countries are allowed to operate. The actions of the US admin are long overdue and Europe must muster up the courage (and incur the costs) of taking a similar position now.

Saying if some countries aren't allowed to freely trade on American soil then none should is a non-sequitur.

ucha··on Facebook says Apple’s iOS 14 changes could hurt its ad targeting
That's somewhat true. The advent of targeted ads allowed lots of niche companies to thrive and compete with the established behemoths that have an oligopoly on shelf space. Internet advertising essentially launched the direct-to-consumer model that's so threatening to the P&Gs and Unilevers out there.
ucha··on Ask HN: How can I quickly trim my AWS bill?
nVidia forces cloud providers to use their expensive professional line-up. But other providers that use consumer GPUs are way cheaper, 4x or more. If your models don't need a lot of memory or double precision, providers such as GPUEater or RenderRapidly can be worth looking at.
ucha··on Zuckerberg: advertisers will be back to Facebook 'soon enough'
There is this very good article of Ben Thompson [1] predicting that Zuckerberg won't budge:

1/ large advertisers represent a small portion of FB's ad revenue

2/ if large advertisers leave and price of ads fall, other "social media ad-dependent businesses" will pick up the slack because they can measure very well their advertising return on investment thus driving the price of ads back up.

[1] https://stratechery.com/2020/apple-and-facebook/

ucha··on A mysterious company’s Covid-19 papers in top medical journals may be unraveling
For reference, this is the original study and HN comments: https://news.ycombinator.com/item?id=23273615
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