HNHacker News
TopNewBestAskShowJobs

devy

10,753 karma · joined March 11, 2011

[ my public key: https://keybase.io/yewang; my proof: https://keybase.io/yewang/sigs/oqeIeIArRK13MRWPHemV_vmPEn1K4qClxSFpwQsTB5U ]

hnchat.com:3XTKnS6ltyuLoPtjZlYF

Opinions and views expressed here are my own.

submissionscomments
devy··on Unexpected 'Black Swan' defect discovered in soft matter for first time
Yep. Even though related but the phrase "black swan" is different from the "Black Swan Theory".

The wikipedia entry[1] has the explanation of both. And the usage by Dr. Thomas certain refers to the phrase not the theory.

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

devy··on Bonkers tri-wing jumbo jet concept reduces fuel consumption by 70%
This is the original official PR Newswire article from March 17th, 2021.

https://www.prnewswire.com/news-releases/se-aeronautics-to-m...

devy··on Azar, a Korean Chatroulette-style dating app quietly taking over the world
Azar is also the last name of former Department of Health and Human Services Secretary (Alex. M. Azar II) under President Trump during the height of COVID-19 pandemic[1].

That last name's origin is Lebanese[2].

[1]: https://www.hhs.gov/about/news/2020/01/31/secretary-azar-dec...

[2]: https://en.wikipedia.org/wiki/Alex_Azar

devy··on Japan decides to release water from Fukushima plant into sea
La Hague site incident was a INES Level 1 incident. Fukushima disaster was a freaking Level 7!
devy··on Japan decides to release water from Fukushima plant into sea
Japan is a highly populous nation. They simply don't have enough land that's far away from human habited area to permanently "store" nuclear waste. America has the Yucca Mountain, USSR/Russia has the Siberia. China has Gobi deserts.
devy··on Japan decides to release water from Fukushima plant into sea
This article makes it seems like no big deal as all radioactive contaminants have been removed by the so-called ALPS except tritium (which has a half life of 12.43 years). However, that's simply not the case. TEPCO has been repeatedly lying to the public about the severity of the Fukushima Daiichi nuclear disaster and downplayed the impact but we now know that it's a INES Level 7 accident. The only INES Level 7 was Chernobyl disaster. But Chernobyl nuclear plant was an inland site - Fukushima is ocean-front power plant site that has the risk of leakeage to sea, so the long term effect is very likely to be much much worse.

Greenpeace released a report[1] recently, and to no one's surprise, most of the decontaminated area are still heavily contaminated today. Also TEPCO's current approach on clean up in unsustainable - certainly not with hundreds of the tanks to store contaminated waste water. Additionally, the cooling of nuclear fuel debris should be switched from water to air cooling. What this means is that there will be more waste water generated and more radioactive to be released into the environment and now into the Pacific ocean. It only takes 400 days for the water to be circulated around the global and the water can be evaporated and rain into inland areas too - the spread would affect more than just oceans.

Dr. Ken Buesseler, a senior marine radiochemist at the Woods Hole Oceanographic Institution in Massachusetts, said he would prefer to see all the water treated properly before any is released. As he noted in his paper[3], there are actually a dozen more radioactive contaminants (perhaps more) in the waste water to be removed. WaPo has a more balanced reporting[2] on this.

So yeah, this news is anything but good. To be fair, Japan being a island nation cannot solve this clean up effort by themselves, they do need other countries to help and figure out a better permanent solution for the nuclear waste disposal here.

[1]: https://www.greenpeace.org/japan/nature/publication/2021/03/...

[2]: https://www.washingtonpost.com/world/asia_pacific/fukushima-...

[3] https://www.researchgate.net/publication/344036480_Buesseler...

devy··on TLS Mastery
> It’s really short on the crypto and offers no insight into why TLS behaves the way it does. ... It’s a lot of “using openssl s_client”-type of discussion;

That is literally how the author explained in his book's Amazon Kindle version's free preview[1]. The author specifically said he is not a brilliant mathematician so he's not going into the details of explaining the math but rather explain the how-to from a practitioner's standpoint. Obviously, you don't need to be a brilliant mathematician in order to under the math behind public-key cryptography but for many engineers, I agree with the author that I care more of about how to configure it and make it work securely rather than the reason behind the scene. The author also claimed that he would recommend some further readings if you would like to dig into it more.

[1]: https://www.amazon.com/gp/product/B091TBX4WH

devy··on Voltswagen of America
Reuters says it's a joke https://www.reuters.com/article/us-volkswagen-usa-name/no-vw...
devy··on Voltswagen of America
No, it's not a joke. https://electrek.co/2021/03/29/its-not-april-fools-yet-vw-wi...
devy··on ShellCheck: A static analysis tool for shell scripts
This has been brought up ten times since 2014 when it first appears on HN :)

Click on the site link[1] in parenthesis to the right of the title, you will see.

[1]: https://news.ycombinator.com/from?site=github.com/koalaman

devy··on Before buying a NYT subscription, here's what it'll take to cancel it
Similar experience with Wired magazine online (owned Condé Nast). These subscription cancellation work flow and process steps are designed to be hard - otherwise their product team is not doing their job, IMO.
devy··on Tencent is acquiring a majority stake in Klei Entertainment
https://en.wikipedia.org/wiki/Banana_republic
devy··on U.S. to require negative Covid-19 tests for international air passengers
> But if the rapid tests are as unreliable in general as they were for me, it’s sort of no wonder COVID is spreading like wildfire.

Many rapid tests are indeed not accurate[1] but they still serve a purpose, depending on the sensitivity and specificity of the tests[2].

For the rapid tests with high sensitivity and you get a positive result, it's highly likely you have COVID.

For the rapid tests with high specificity and you get a negative result, it's highly likely that you don't have COVID.

And the public health measures of testing / contact tracing ONLY works if testing results come back quick. PCR tests are neither fast nor cheap, so those are not as effective in prevention of spreading because you don't do those all the time (slow + expensive).

Medcram has a good video talking about this. [3]

[1]: https://www.wsls.com/news/local/2021/01/08/cdc-study-shows-c...

[2]: https://en.wikipedia.org/wiki/Sensitivity_and_specificity

[3]: https://www.youtube.com/watch?v=h7Sv_pS8MgQ

devy··on China CCP to Nationalize Jack Ma's Alibaba and Ant Group – Report
Yep. https://en.wikipedia.org/wiki/Radio_Free_Asia
devy··on CVE-2021-3011: Key recovery on Google Titan Key
It looks like all hardware 2FA keys with NXP A700X chip are affected.
devy··on No, Austin Won’t Become Silicon Valley 2.0
Very well reasoned and written. Agree 100% on the drastic socioeconomic change upon Austin turning into San Francisco (if that every occurs) would undoubtedly meet with resistance from local residents and businesses who are going to be affected negatively. This similar debacle sorta happened in Amazon's unsuccessful bid in choosing LIC (of NYC) as its HQ2.
devy··on New Defaults
> Now that we understand this piece of information

No, a large portion 72 million Americans don't. They still believe fringe theories and conspiracies like 5G signal caused COVID-19 or election was stolen.

devy··on New Defaults
Ben Thompson tried to compare China with over 1.4 billion people with Taiwan with only 24 million people and vehemently arguing that the Taiwan's governance is better is very disingenuous at best. Imaging the comparing the governance of large corporation vs. a small startup, it's just different. The complexity and nuances of managing human organization will increase drastically when the headcount increases. That's just common sense.

Also Ben is based in Taiwan, he should know better. The current Tsai Ing-wen's regime actually oppressed free press and freedom of speech by terminating CTi News TV broasting license due to political reasons (since CTi New airs opposing views to her government and is generally seen as close to the mainland China).[1]

I don't agree with Ben's first rule of new default either:

    First, it should be the default that free speech is a good thing, that more 
    information is better than less information, and that the solution to 
    misinformation is improving our ability to tell the difference, not futilely 
    trying to be China-lite without any of the upside.

The more information is NOT better at all. Information overload will cause great harm and push people to the extreme ideology, as we've seen in social media (facebook, twitter, google etc.) the self-reinforced bubble. And there are physical drawbacks to those too. The more noise and junk information the less likely you can make an informative decision. Garbage in garbage out!

[1]: https://www.bbc.com/zhongwen/simp/chinese-news-55000536

devy··on Bringing civic tech to Taiwan's coronavirus pandemic response [audio]
> Yes the current Taiwanese government is truly one of the world's finest

World's finest in what regards?

Have you seen what the conflict resolution[1] they chose in parliament meetings?

> and the US governance one of the worst.

Are you also aware that United States has almost 14x of the population than Taiwan's? The governance of 330 million people coming from many different backgrounds and ethnicities around the global vs. 98% of homogeneous Han Chinese[2] are an order of magnitude difficult?

I am afraid your anecdotal doesn't tell the full story.

[1]: https://www.bbc.com/news/world-asia-40640043

[2]: https://www.worldatlas.com/articles/ethnic-groups-of-taiwan....

devy··on Mealworms can compost styrofoam
Turning the waste into building & construction materials is definitely going to be one of the major industrial ways of low-carbon polymer recycling.
devy··on Using GNU Stow to manage your dotfiles (2012)
Can you share some of your setup there to exemplify? Thanks.
devy··on Using GNU Stow to manage your dotfiles (2012)
> but what's wrong with having a regular git repo anywhere you want with all of your dotfiles and them symlink those files to where they need to go?

Nothing wrong with tracking dotfiles with Git. It's probably the simplest and easiest approach without requiring any fancy tools other than Git. However, as mentioned in ArchLinux's wiki page, the disadvantage of Git approach is that "host-specific configuration generally requires merging changes into multiple branches."[1]

[1]: https://wiki.archlinux.org/index.php/Dotfiles#Tracking_dotfi...

devy··on Anonymously call out the bad behavior of “ghosting” by recruiters
The site mentions about calling out companies who ghost candidates too, so I am offering my view from the employer's perspective. The hiring managers could be interviewing dozens if not hundreds of candidates - sometimes they are genuinely busy and they literally cannot spend countless hours to respond to every candidate they've spoken to tell them "No, we've passed on you".

Ghosting also happens in both way - as a hiring manager, I've had a many times where I had to reach out to the candidate patiently waiting for their response to the next round or getting back to me for a coding exercise with no response (the bad ones) or a "sorry, I forgot to tell you that I got the job already."

Finding a job is a lot like dating, it takes 2 parties to make it work. So just like ghosting in dating scene, ghosting in hiring process will always exist, it's not a technology problem but it's a human behavior problem. By the way, anonymously calling out the other party of ghosting is even worse IMO.

devy··on Why can’t you buy a good webcam?
I am going tangential a little bit from what the original post here, but I think the answer is you can.

GoPro Hero Action Cams can be used as a good webcam[1], for instances.

They are definitely NOT cheap though - running $250 - $500 new depending on the models and about $100+ for used models on flea bay.

The latest GoPro models like Hero8 Black or Hero9 Black that doesn't have HDMI output ports but instead having USB-C output ports actually make it easier to connect to computer as a premium webcam because not only those new models don't require a HDMI video capture device to convert signals but also the USB connection is slow charging the GoPro battery! All you need to get it to work is the GoPro camera with latest firmware, the bundled USB-C to USB-A cable and a desktop app (for macOS the app is about 10MB and super easy to use.) Let me tell you the video quality so much better! (1080p instead of 720p on MacBook Pro and the camera sensor is obviously different too).

https://gopro.com/en/us/news/how-to-use-gopro-for-webcam

devy··on Equity guide for employees at fast-growing companies
Interesting. It seems that Compound is a direct competitor of Carta (formerly eShares Inc.).

Does anyone have experience exploring both of them? Pros and Cons?

Btw, Carta has A LOT MORE content on Equity guide for employees.[1][2][3][4] etc.

[1]: https://carta.com/blog/category/employee-resource-center/

[2]: https://carta.com/blog/equity-101-stock-option-basics/

[3]: https://carta.com/blog/equity-101-stock-economics/

[4]: https://carta.com/blog/equity-101-exercising-and-taxes/

They even held workshops for startup employees at Union Square Ventures office in NYC a few years back in addition to a number of other meetups and talks at conferences.

devy··on Iranian nuclear scientist was killed using 'satellite-controlled machine gun'
This is a dangerous precedent and it would be just a slippery slop to get to Autonomous Weapons[1]. Unfortunately the technology is readily available with low barrier of entry.

[1]: https://autonomousweapons.org/

devy··on Google staff rally behind fired AI researcher
Yes. I am just stating a fact. And do you see a change?
devy··on Google staff rally behind fired AI researcher
This above is very intolerable in Corporate America. First and foremost, she works for the corporation and get paid, no matter how great she is, she has to follow the corporate culture and norms or she won't be surviving in Corporate America.

Stanford Business School professor Jeffrey Pfeffer wrote a book about this[1] in particular.

[1]: https://www.goodreads.com/book/show/24331490-leadership-bs

devy··on Front: The $1.3B Startup Slackifying Email
Thank you, I was going to ask the same question, what is Front? :)
devy··on Python Pip 20.3 Released with new resolver
Hynek, a CPython committer, had written a blog post[1] the state of Python application dependencies in 2018, updated in 2019 (no change in 2020, I asked). It was also surfaced on HN 3 times but did not get much attention[2]

[1]: https://hynek.me/articles/python-app-deps-2018/#petry

[2]: https://hn.algolia.com/?q=python-app-deps-2018

← PreviousPage 6 of 34Next →