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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.

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devy··on Elon Musk reopening Tesla factory despite Alameda County order
> A Tesla factory is a much safer place to be than a Home Depot or a Costco, and many other businesses open in California today. We aren't talking about sporting events here: we're talking about some of the lowest risk and unavoidable interactions.

> This is locking down for the sake of locking down, not an evidence-first safety driven approach.

You are stating that like it was a fact. It's NOT. Where is the evidence to support that Tesla factory is lowest risk? Now perhaps if all of the original KUKA robots are on and assembly lines are automated then it would probably be a different story. But apparently it's not, is it?

We still haven't fully grasped the full cause and damages SARS-CoV-2 will bring to people (for instances, originally we thought children are extremely low risk, but they are NOT, they could be infected and DIE too!). We still haven't even near the order of magnitude of CODVID testing AND contract tracing programs needed to reopen economy, what on earth you think reopening is a good idea?

What about the healthcare workers sacrificing their lives to save selfish people like Elon Musk? Those ICU doctors and nurses are EXTREMELY fatigued. Premature reopening will most likely bring another big wave of infections and deaths, and then we are back to square one - wasting all these past 2 months of hard physical distancing measures.

As a long time EV driver and a big fan of Elon Musk, I am deeply disappointed at him on this.

PS: Tesla's Return back to Work playbook has no mention about doing daily testing for its employees, we do know asymptomatic transmission accounts for huge percentages. How does he plan to address that? What kind of hero he is to calling for his employees to go back to work and die for capitalism?

devy··on Show HN: Lite – A small, fast text editor
Someone made a formula: https://github.com/lincerely/homebrew-tools

   brew install lincerely/tools/lite
Or

   brew tap lincerely/tools; brew install lite
devy··on Show HN: Lite – A small, fast text editor
Checking the Github repo, it says 92.3% C[1], 2.6% Lua[2], why does the author claim it's a "text editor written in Lua" instead?

[1]: https://github.com/rxi/lite/search?l=c

[2]: https://github.com/rxi/lite/search?l=lua

devy··on There is one, and only one strain of SARS-CoV-2
This echoed what Peter Kolchinsky (Harvard-trained Virologist turned VC in Life Science)[1] had said why the initial wave of vaccines for SARS-CoV-2 will arrive and will be mostly effective[2]

[1]: https://peterkolchinsky.com/bio

[2]: https://news.ycombinator.com/item?id=22900397

devy··on Google Meet premium video conferencing is now free for everyone
And Zoom stock is down 7% right now. https://www.google.com/search?tbm=fin&q=NASDAQ:+ZM
devy··on “Amazon is holding over 4.2M dollars, suffocating our business”
The OP said it was a velocity hold tripped up due to COVID19 situation that caused the sales to spike drastically.

https://sellercentral.amazon.com/forums/t/amazon-is-holding-...

And got the attention and escalated:

https://sellercentral.amazon.com/forums/t/amazon-is-holding-...

And then eventually resolved: https://sellercentral.amazon.com/forums/t/amazon-is-holding-...

devy··on Shirt Without Stripes
Google's result is noticeably better though. :)
devy··on A Coronavirus Vaccine Is Coming, and It Will Work
Yes, but I believe his intention in writing this article is to explain the science behind why there will be highly likely a working vaccine for SARS-CoV-2 virus, rather than giving specific companies in his VC portfolio who make vaccines a PR boost.
devy··on A Coronavirus Vaccine Is Coming, and It Will Work
Yep, the author Peter Kolchinsky has a PhD degree in Virology from Harvard University.

https://peterkolchinsky.com/bio

devy··on New iPhone SE
> * Lack of headphone jack is still unacceptable

Sorry, you can't have IP67 water resistance with that 3.5mm headphone jack.

Edit: a lot of folks proved me wrong. I feel that I need to clarify: Apple's design goal is to make it thiner, more integrated, less components more battery space and unified input/output interface, all that combined with water resistance, is not practical. All the 3.5mm examples I am seeing doesn't attempt to make it thin and light albeit water resistant.

devy··on Moving from reCAPTCHA to hCaptcha
Good point! The economy of scale is one of the ways to fight against spam bots
devy··on Moving from reCAPTCHA to hCaptcha
The enterprise grade hCaptcha[1] is not free either. Does anyone have pricing information?

[1]: https://www.hcaptcha.com/#plans

devy··on We’re working on 1M Covid-19 testing capacity per day
> We try to avoid both issues by utilizing a currently unused Sanger install base and low-cost reagents.

Good thought! Thank you.

Additional question: are Sanger instruments also very sophisticated and manufactured by those limited few pharmaceutical companies/medical equipment manufacturers? Or is there a need or necessary to scale up the production for Sanger instruments too? I am asking that is because lack of testing is a global issue, not only in the U.S. Africa/India together has 2 billion people are the testing hurdles there are even more challenging.

devy··on We’re working on 1M Covid-19 testing capacity per day
Hi David, what about Rosche Cobas 6600/8800 high-throughput diagnostics machines? Are they using the traditional RT-qPCR assay? How can they are able to test 400k samples per week?

https://diagnostics.roche.com/us/en/news-listing/2020/roche-...

devy··on How will life change post-Covid?
you should rename it to

   Ask HN: How will life change post-Covid?
devy··on Google allows G Suite administrators to monitor and audit user emails
Got it now. Getting a copy of incoming + outgoing via BCC for an individual account's emails is not quite the same as accessing individual account's emails though.

For GSuite basic subscriptions, there is a 30GB quota per inbox, having BCCs for every account's emails will like exceed the plan allowance. I doubt it would work if you exceed the account quota allowed for the subscription plan.

devy··on Coronavirus and Credibility
Fox News deserves class-action lawsuit for their lies and the damages it caused for making people who watched their news disregarding the social distancing rules.

https://news.yahoo.com/fox-news-reportedly-fears-early-11453...

devy··on Google allows G Suite administrators to monitor and audit user emails
> I can always reset a password and gain full and instant access.

AFAIK, resetting an individual GSuite account's password is the only way GSuite Admin can access individual account's emails. Is there any other way to get access?

devy··on Bose QC 35 Firmware 4.5.2 Noise Cancellation Investigation Report
I have owned 3 pairs Boss QC noise-cancellation headphones (QC15, QC25 and QC35). While they are generally considered to be a reputable brand, and their software/firmware might be the best, their hardware design is NOT.

I noticed that their QC15/25 has a major flaws on the battery compartment design cause its wiring prone to wire fatigue and as a result it will inevitably end up with a broken side. This is very well known in the community.[1][2][3]

And after warranty expires(usually 1-2 years), Boss charges you $100 for a refurbished replacement (required that you sent your broken headphone back to Boss before you get your replacement) instead of just fixing yours (which should be much cheaper). Highway robbery!

[1]: https://www.youtube.com/watch?v=0u2GBBZbAyQ

[2]: https://www.youtube.com/watch?v=Qlb094awkoo

[3]: https://www.ifixit.com/Answers/View/10706/How+to+fix+power+t...

devy··on Honda bucks industry trend by removing touchscreen controls
The physical dial and nobs and the tactile feedback when human drivers get from operating them is much better than touch screen controls. I applaud Honda's the design, as well as some German automakers' design in the same vein.
devy··on I'm calling Bullshit on Medtronic's Open Sourcing of a ventilator design
Medtronic should not be making such a big fuzz on media about "opening up design/open sourcing" their entry level ventilators consciously knowing their true intent was never meant to help others to mass produce their ventilators due to concealing mechanical drawings, software, and BOMs and no MCU for the model to support mass production.

If you know there is never a chance someone could mass produce your machine to threat your revenue, it's disingenuous at best to claim open sourcing your 15 year old modal could help for other to mass produce ventilators in the next few days or weeks (NOT YEARS!!!).

It just doesn't help in short time and in long term it doesn't matter because we need the ventilators NOW!

devy··on I'm calling Bullshit on Medtronic's Open Sourcing of a ventilator design
More dirt of Medtronic:

- In May 2018, Medtronic was ranked as the largest corporate tax inversion in history. [1]

- Medtronic weaseled their way out of creating affordable ventilators for the US government.[2]

[1] https://www.theglobeandmail.com/globe-investor/investment-id...

[2] https://www.nytimes.com/2020/03/29/business/coronavirus-us-v...

devy··on China Became Capitalist
This is dated seven years ago 2013, mod please add a date tag.
devy··on Back-of-the-envelope estimates of next quarter’s unemployment rate
Ask the the front line ICU doctors and nurses, they know better.
devy··on Back-of-the-envelope estimates of next quarter’s unemployment rate
Yes, face masks are common sense measure to prevent respiratory illness from spreading. Yet, U.S. CDC kept saying don't wear masks even till this date, kept giving Americans the lies of "false security" of wearing mask. I get the intention of preventing a run on precious N95/surgical masks that hurt healthcare workers - but come on, we should have use Defense Production Act to compel factories to make masks and increase productions as wells as impose strict purchase limits and regulate the market on the masks instead of telling people masks are unnecessary. This is to me the 2nd biggest failure of CDC leadership after screwing up with the COVID-19 testing kits.

By the way, we learned that a century ago during the 1918 Spanish flu pandemic - wearing masks help, even with non-N95 masks. Influenza could also caused by corona viruses, also transmitted via droplets primarily, just like the SARS-CoV-2

devy··on The origin story of the N95 mask
Other than invented face mask, Dr. Lien-teh Wu was the first medical student of Chinese descent to study at the University of Cambridge and graduated top class. Later Dr. Wu had also studied at Pasteur Institute, the world's renowned institute on infectious disease. After successfully led the containment effort for Manchurian Pneumonic Plague of 1910–1911, he co-founded Chinese Medical Association. He was also widely considered the pioneer of public health and the founding father of modern medicine in China.

https://en.wikipedia.org/wiki/Wu_Lien-teh

devy··on Can you kill coronavirus with UV light?
The simple answer is it probably can, but the actual facts are more nuanced than a simple confirmation.

All bio-safety labs or hospitals or water treatment plants or special HVAC systems have UV-C lamps to sanitize pathogens because UV-C radiation destroying nucleic acids (DNAs / RNAs).[1] However, the effectiveness really depends on the amount exposure/energy level, light of sight(because UV-C doesn't penetrate deep into objects), and even dust in the air or the on the UV-C light lamps(which reduced the energy they emit) as well as how DNA/RNA can be evolved or self-repaired.

Anecdotally, Chinese hospitals are using UV-C lamp to sanitize their medical equipments, masks (when it was in short supply months ago) among other things.

And yes, more exhaustive experiments should be conducted to affirm this practice as it's the most non-toxic and energy efficient way to sanitize surfaces.

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

[2]: https://www.cnbc.com/2020/03/18/how-china-is-using-robots-an...

devy··on Mystery in Wuhan: recovered coronavirus patients test negative then positive
> hypothesize

Of course not! We've got half a million cases now, hundreds of thousands cases in hospitals, and hundreds of papers published in all the medical journals. So yeah, data is rich.

devy··on Mystery in Wuhan: recovered coronavirus patients test negative then positive
No. The point is, COVID-19 testing kit is in extreme short supply everywhere in the world right now given most countries are locked down and the viral outbreak patients are growing at an exponential rate, the next reliable way to diagnose COVID-19 for clinicians without testing kits is to use CT (which gets results fast and inexpensive and the equipment is universally accessible in every hospital) scans and find some patterns, which is exactly what doctors in Wuhan did during the early phase of the outbreak[1].

[1]: https://www.ncbi.nlm.nih.gov/pubmed/32134681

devy··on Mystery in Wuhan: recovered coronavirus patients test negative then positive
Yep! CT scans and clinician's experience is more reliable than any tests for COVID-19 diagnostics (which should only serving as a definitive confirmation). This also why I believe human doctors are still unbeatable by AI
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