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tedd4u

1,674 karma · joined August 17, 2009

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tedd4u··on US Ends Support For Ukrainian F-16s
For the US, this is an extremely cheap [1] way to counter Russia. Ukraine is doing 99% of the work. We give them money which they immediately give back to us to buy hardware. Or we give mothballed hardware slated for destruction. Most prefer this to a future with dead Americans and US boots on the ground in Europe when NATO countries are invaded by Russia, emboldened by a world that gave up on Ukraine.

[1] as a percentage of the US$850,000,000,000 _annual_ Pentagon budget

tedd4u··on US Judge invalidates blood glucose sensor patent, opens door for Apple Watch
Can verify this works. Use reship.com to get a Canadian mailing address and have it forwarded.
tedd4u··on Macrodata Refinement
That's 10 points, you have 90 points remaining.
tedd4u··on Apple files emergency motion to become defendant in US vs. Google [pdf]
>And they're also a grocery store, for god's sake.

They're also your primary care doctor! Amazon OneMedical!

https://health.amazon.com/onemedical

Scroll down the page a bit.

tedd4u··on Show HN: Watch 3 AIs compete in real-time stock trading
Sunny, given this investment objective, what would you consider a good (and transparent) benchmark? Thanks for sharing this.
tedd4u··on Jeju Air Jet Crashes in South Korea With Over 170 Dead or Missing
I'm glad to hear there have been big changes. However, there is a more recent accident associated with a Korean operator: Asiana flight 214 crash at SFO in 2013.

The NTSB identified poor crew communication and crew resource management as important factors. Reuters and AFP reported negative repetitional impact to Korean air carriers.

https://en.wikipedia.org/wiki/Asiana_Airlines_Flight_214

tedd4u··on Jeju Air Jet Crashes in South Korea With Over 170 Dead or Missing
Birdstrike #2 engine possibly captured on video:

https://x.com/Global_Mil_Info/status/1873181671375421703

tedd4u··on Scale Model of Boeing 777-300ER, Made from Manila Folders
Posted here 4 years ago (885 points / 200 comments) https://news.ycombinator.com/item?id=23749821
tedd4u··on Parents of OpenAI Whistleblower Don't Believe He Died by Suicide, Order Autopsy
Well, not any longer. It will take a lot more convincing, won’t it? It’s chilling.
tedd4u··on I built a 1B FPS video camera to watch light move
Inspired by the MIT camera discussed here 13 years ago

Trillion-frame-per-second video https://news.ycombinator.com/item?id=3346609

tedd4u··on The Parker Solar Probe will make its closest approach yet to the Sun
I think NASA is saying it's already gone well inside the Alfvén surface and so that qualifies as basically "into the suns atmosphere."

[1] https://en.wikipedia.org/wiki/Alfvén_surface

tedd4u··on Load is not what you should balance: Introducing Prequal
A few notes on Power-Of-Two-Choices (Po2C) which is part of the solution described in the paper.

NGINX appears to have Po2C available as an option on the "random" balancing algorithm. [1] It only considers load (requests in flight), unlike the paper which also considers recent latency (and does many other things).

However NGINX "Plus" (the paid version) appears to have a couple additional settings that use actual traffic as latency probes (not asynchronous synthetic probes as described in the paper). [also 1] It's not fully clear to me but I think if you use these options it's going to only use latency, not load. The paper described in this post actually uses both load (RIF) and latency. Eager to try these out.

Also, I noted that HAProxy author and kernel maintainer Willy Tarreau wrote an article in 2019 about adding Power-of-two-choices to HAProxy. [2] He builds a test bed with a few micro services and compares several balancing algorithms to Po2C, considering response time, throughput, and max load.

One conclusion is that "At the very least, Power of Two is always better than Random. So, we decided to change the default number of draws for the Random algorithm from one to two, matching Power of Two." However, in the response time data, the test appears to consider only average response time. I would love to see the p90 and p99 tail latency of these tests. The main focus of the paper in this post is minimizing p90/99, not average latency.

Tarreau also helpfully provides links to both a 2001 research report by Mitzenmacher, Richa & Sitaraman and also the original 1996 Po2C PhD thesis by Mitzenmacher.

[1] https://docs.nginx.com/nginx/admin-guide/load-balancer/http-...

[2] https://www.haproxy.com/blog/power-of-two-load-balancing

tedd4u··on Load is not what you should balance: Introducing Prequal
The last sentence of the abstract indicates the goal is to be able to run at higher utilization without sacrificing latency. The outcome of that is you need less hardware for a given load which for Google undoubtedly means massive cost savings and higher profitability.

   > Prequal has dramatically decreased tail latency, error rates, and resource 
   > use, enabling YouTube and other production systems at Google to run at much 
   > higher utilization.
tedd4u··on Wuhan lab samples hold no close relatives to virus behind Covid
First point lauds rapid approval which it claims was successful and saved millions of lives. Second point criticizes a "rushed" and "dangerous" approval.
tedd4u··on Wuhan lab samples hold no close relatives to virus behind Covid
[offtopic] From the report, these two findings:

   > OPERATION WARP SPEED: President-elect Trump’s Operation Warp Speed — which 
   > encouraged the rapid development and authorization of the COVID-19 vaccine 
   > — was highly successful and helped save millions of lives.
   > 
   > RUSHED COVID-19 VACCINE APPROVAL: The FDA rushed approval of the COVID-19 
   > vaccine in order to meet the Biden Administration’s arbitrary mandate 
   > timeline. Two leading FDA scientists warned their colleagues about the 
   > dangers of rushing the vaccine approval process and the likelihood of 
   > adverse events. They were ignored, and days later, the Biden 
   > Administration mandated the vaccine.
So, which is it?
tedd4u··on ChatGPT Pro

    > To highlight the main strength of o1 pro mode (improved reliability), we 
    > use a stricter evaluation setting: a model is only considered to solve a 
    > question if it gets the answer right in four out of four attempts ("4/4 
    > reliability"), not just one.
So, $200/mo. gets you less than 12.5% randomly wrong answers?

And $20/mo. gets you >25% randomly wrong answers?

tedd4u··on ASML Twinscan EXE:5000 Lego Set
Retail US$ prices for Lego-branded kits are usually about $0.10 per piece. So I would expect this kit would cost about $85 if Lego were selling it, implying a +170% premium.
tedd4u··on Starlink Direct to Cell

    >E-UTRAN Node B, also known as Evolved Node B, is the element in E-UTRA of    
    >LTE that is the evolution of the element Node B in UTRA of UMTS. 
Thanks, wikipedia! [1]

[1] https://en.wikipedia.org/wiki/ENodeB

tedd4u··on Half-Life 2: 20th Anniversary Update
Cool, but do I really feel like buying this game yet again?

Still holding out for HL 3. ¯\_(ツ)_/¯

tedd4u··on Thomas E. Kurtz has died
The B in BASIC stands for "beginner." AppleSoft BASIC on an Apple ][+ was my first programming experience -- in kindergarten (1979). I was 5, and with help from my brother and my dad, I was able to learn and program independently. When you turn a machine like that on, its default mode is just a blinking cursor and a BASIC REPL. But you could do amazing things right from BASIC with the ]['s colorful low-res graphics (and slightly less colorful hi-res graphics) using the family TV as the monitor. All the motivation I needed. Thank you Dr. Kurtz! (and Woz!)
tedd4u··on Tesla's Cybertruck is outselling almost every other EV in the US
It's impressive. But to be fair, a totally novel item should be expected to have pent up demand that smooths out over time. The F-150 was introduced 49 years ago so demand has smoothed already.
tedd4u··on The life-changing magic of Japanese clutter
Our home kitchen has cabinets that are mostly transparent glass. Worst of both worlds? The clutter is easily visible but access is slowed. Really though, I think there is a purpose: doors keep the dust and grease of the kitchen environment away from the items in the cabinets.
tedd4u··on Meteorologists get death threats as hurricane conspiracy theories thrive
Anti-rationality and ignorance aren't new to the scene in the US. In 1980, Isaac Asimov wrote an essay titled "Cult of Ignorance." [1]

    “There is a cult of ignorance in the United States, and 
    there has always been. The strain of anti-intellectualism
    has been a constant thread winding its way through our 
    political and cultural life, nurtured by the false notion
    that democracy means that 'my ignorance is just as good as
    your knowledge.'”

[1] https://aphelis.net/wp-content/uploads/2012/04/ASIMOV_1980_C...
tedd4u··on Nasir Ahmed's digital-compression breakthrough helped make JPEGs/MPEGs possible
"Lossless" compression is based on information that can be discarded without negative consequences because it cannot be perceived by humans. The data is real and there, you just can't see it or hear it. If you can quantify what information humans can't perceive, you can discard it, leaving less data and possibly more amenable data for a subsequent lossless compression phase. MP3, JPEG, MPEG all benefit from this understanding of the human perceptual system.
tedd4u··on Apple M5 Chip's Dual-Use Design Will Power Future Macs and AI Servers
M3 Pro (and some lower-core count M3 Max) parts have lower memory bandwidth than their M2 comparable. If your workload is highly dependent on memory bandwidth, then M2->M3 on Pro or Max might not be an improvement.

See tables here

https://en.wikipedia.org/wiki/Apple_M2#Variants

https://en.wikipedia.org/wiki/Apple_M3#Variants

tedd4u··on Engine Sound Simulator
Holy crap, is that modified or do they all sound that loud? And not just in reverse? Not the future we were promised.
tedd4u··on Supreme Court rules ex-presidents have immunity for official acts
I wish. An official act is not one that is motivated by government business. It's defined as the exercise of official powers. In the decision, the motive behind exercise of official powers can't be examined and the exercise itself (let alone the motivation) cannot be introduced into evidence at trial.
tedd4u··on Supreme Court rules ex-presidents have immunity for official acts
You can't and that's the specific reason Justice Barrett concurred only in part.
tedd4u··on Supreme Court rules ex-presidents have immunity for official acts
Sotomayor's dissent [1] is a must-read as well. She's more concerned than you are.

    The President of the United States is the
    most powerful person in the country, and possibly the
    world. When he uses his official powers in any way, under
    the majority’s reasoning, he now will be insulated from
    criminal prosecution. Orders the Navy’s Seal Team 6 to as-
    sassinate a political rival? Immune. Organizes a military
    coup to hold onto power? Immune. Takes a bribe in ex-
    change for a pardon? Immune. Immune, immune, immune.


[1] Search for "SOTOMAYOR, J., dissenting" in this PDF: https://www.supremecourt.gov/opinions/23pdf/23-939_e2pg.pdf
tedd4u··on Show HN: Safe Routes. real time turbulence data, ML predictions with an iPad
Does your app have to run in the foreground on the iPad during the flight? Or can the crew user other apps in flight?
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