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a11r

641 karma · joined February 26, 2015

Building fully autonomous application development capability. I used to lead the gRPC team at Google, in addition to Cloud Networking Management Plane and Gemini Cloud Assist Troubleshooting.

https://morph.systems https://twitter.com/_a11r_ https://www.linkedin.com/in/1abhishekkumar/

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a11r··on Rethinking Diabetes – interview with Gary Taubes
Gary Taubes has written multiple scholarly books on the subject. He has won the Science in Society Journalism Award of the National Association of Science Writers three times. I think a training in one scientific field does qualify a person to go spend their time digging into other fields. How well they do is a matter of personal ability and effort and one would have to read their output and judge for oneself. I have read many of Taubes's book and many of the papers cited in his books and have concluded that he is a well qualified expert in the field.
a11r··on Google Maps has become significantly less usable of late
For people with mobility challenges, or those with communication challenges, being able to look at a map of the airport and plan in advance is useful.
a11r··on Alexander the ‘Accursed’ and Zoroastrianism
"Yunnani" medicine comes from the region of Yunnan [ https://en.wikipedia.org/wiki/Yunnan ] and is unrelated to Yunan.
a11r··on Apple’s ad business set to boom on the back of its own anti-tracking crackdown
It depends. Sometimes you don't know that a solution exists for your problem.
a11r··on The night I met Einstein (1955)
I am in the middle of listening to Einstein: His Life and Universe by Walter Isaacson and would highly recommend this biography to anyone interested in more.
a11r··on California’s demography is at odds with the old California Dream
The State Controller's office publishes detailed reports: https://www.sco.ca.gov/ard_state_acfr.html
a11r··on The Central Problem: the world of Late Antiquity from its Persian centre (2021)
Perhaps search for a library that has it. https://www.worldcat.org/title/last-empire-of-iran/oclc/1138...
a11r··on Turning a MacBook into a touchscreen with $1 of hardware (2018)
I think two mirrors at an angle would provide an opportunity to get much better precision in estimating the location on the screen being touched. Wondering if you have tried that.
a11r··on Backpressure – the resisted flow of data through software
This is indeed the right way to leverage TCP flow control, and works well at the layer that knows exactly what is coming over the socket. The pitfall here is if semantically independent data is being multiplexed over the same TCP connection then suspending reads may cause collateral damage and in the worst case livelock situations. Examples of multiplexing include separate streams and control frames in HTTP/2, in-band health checks and keepalives in various protocols, etc.
a11r··on Bar-tailed Godwits regularly travel more than 7,000 miles non-stop
Even more incredible since the article points out that "Unlike albatross or other long-flying seabirds, godwits are active flyers, not gliders—their wings are moving the whole time." I wonder if they can use the active-flying equivalent of regenerative braking in favorable wind conditions to actually generate energy while flapping their wings. Not sure if any animals can generate energy while walking downhill.
a11r··on Word-Aligned Bloom Filters
The original paper by Burton H. Bloom is only 5 pages and very readable. https://dl.acm.org/doi/10.1145/362686.362692
a11r··on Goldman Sachs: Here’s How Oil Prices Could Reach $90 This Winter
This stopped being true during the 2008 financial crisis. See https://www.marcus.com/us/en .
a11r··on Indra – Hackers Behind Recent Attacks on Iran
This article completely misses context behind the name Indra for a group attacking Iran.

In Vedic Hindu texts, and in Zoroastrian texts, a great battle among Devas[1] and Asuras (Ahuras)[2] is described. In the Vedic Hindu version, the Devas won, but for some reason decided to emigrate to India. In the Zoroastrian version, the Asuras won and kicked the Devas out of Persia.

Indra was the king of the Devas. The word Deva eventually came to mean God in Sanskrit and Indra became the King of gods and God of thunder and rain.

[1] https://en.wikipedia.org/wiki/Indra#Origins [2] https://en.wikipedia.org/wiki/Ahura_Mazda

a11r··on Ask HN: How Do You Learn?
Pick something controversial on the subject, explore alternate viewpoints and dig deep enough to form your own opinion. For example, when learning about nutrition, whether Keto works or not is a good controversy. One might start with Gary Taub's book, read its reviews and criticisms, read the source material that is cited by the proponents and detractors, read papers cited by those papers, until one is comfortable forming their own opinion.

Controversies are found at the cutting edge of most fields and analyzing arguments that take the "settled" knowledge in the field and still reach contradictory conclusions provides a lot of insight into the body of knowledge in the field and how much of it is really settled.

a11r··on Ask HN: How Do You Learn?
Art of Problem Solving is great - I think they take credit for the US Math olympiad team's performance. I use books from the same organization at elementary school level and find them very good and fun to teach. I would recommend going a level lower among the books published by them [1] to see if that is a good starting point for your child. Their website also has some placement tests etc. to evaluate the right level for a student.

[1]https://artofproblemsolving.com/

a11r··on India's living dead
> He added the suffix mritak - meaning "the late" - to his name, becoming "the late Lal Bihari", .... But it wasn't enough to change his situation.

I really liked this man's sense of humor.

a11r··on US Forces Being “Rushed” to Kabul Airport as Embassy Evacuation Underway
Almost exactly 25 years ago, the Taliban captured Kabul for the first time. I still remember the sense of foreboding while following the coverage in the Times of India in Aug-Sep 1996. We all know how that played out.

The situation is very different now, and there will be much less violence this time, at least initially when Kabul falls. But it is difficult to imagine how this round plays out in a fundamentally different way. History may judge Biden very harshly for this withdrawal.

a11r··on Tomato fruits send electrical warnings to the rest of the plant when attacked
Electrical activity in plants has been known to science for a long time: https://www.thebetterindia.com/76587/jagdish-chandra-bose-in...
a11r··on Low-carbohydrate diets and all-cause and cause-specific mortality
Gary Taubes has done a pretty comprehensive takedown of the Nurese Health study[http://garytaubes.com/science-pseudoscience-nutritional-epid...] and all the wrong conclusions the good folks at Department of Nutrition, Harvard School of Public Health have managed to torture out of it.
a11r··on How many flies are in my apartment?
Or Face Mites.
a11r··on When Stockton gave people cash, they got jobs
Giving people cash unconditionally would be much better than requiring them to not have any job . The former encourages recipients to retain their jobs or even look for higher paying jobs, and handles corner cases better(single mom working two jobs ineligible for unemployment on losing one).
a11r··on California is not in drought
The pricing for water in California is highly asymmetric, with urban users paying significantly more (one to two orders of magnitude more) for water than agricultural users. If agricultural users are charged a higher rate (or equivalently the state cuts back on their subsidies ) and "free' rights to water are regulated and distributed more evenly across the population then wasteful use of water will immediately become uneconomical. That is the right long term solution to aligning resource usage with available supply.
a11r··on Kelly Criterion
For anyone actively managing investment portfolios, a deep understanding of the Kelley criterion is very important. For example, it is common practice to use "Half Kelly" to size positions, but most sources only provide a hand-wavey intuitive explanation. Thorp's paper[2] quantifies the benefits for any fraction of the "full Kelly" bet and its implications. In addition to Poundstone's book [1] I strongly recommend Ed Thorp's highly readable paper[2].

[1] Poundstone, William (2005), Fortune's Formula: The Untold Story of the Scientific Betting System That Beat the Casinos and Wall Street, [2]https://wayback.archive-it.org/all/20090320125959/http://www...

a11r··on The Buddhist history of moveable type before Gutenberg (2016)
The timing is interesting. According to the article, one of the reasons this did not succeed more broadly was due to the large number of characters in the script adapted from the chinese writing system. The invention of Hangual a couple of centuries later did bring to Korea a script with dozens of letters instead of thousands. If the modern script was invented first, perhaps we would be crediting Korea as the birthplace of the printing press.

edit:fixed typo

a11r··on Atomic clocks compared with astounding accuracy
Link to paper: https://arxiv.org/pdf/2005.14694.pdf
a11r··on Oldest Libraries in the World
Since the list includes libraries not in opration any more, I was expecting to find the Nalanda Library there. https://en.wikipedia.org/wiki/Nalanda#Library
a11r··on How the placenta evolved from an ancient virus
Not a book, but prof. Vincent Racaniello offers free courses[1] and has great youtube videos.

[1]https://www.virology.ws/course/

a11r··on A Tour of the Worm (1989)
Cool ! The most fun I had in grad school was dissecting the Witty worm. https://www.icir.org/vern/papers/witty-imc05.pdf
a11r··on Why did a humpback whale save a seal's life? (2016)
The hypothesis at the end of the article assumes humpback whales are just acting instinctively. I think it is much more likely that the whales are able to reason that denying other prey to their babies' predator is a good thing. In addition to keeping the orca population in check and reducing the energy available to them, the humpbacks might also be fully capable of holding a grudge.
a11r··on Sally Floyd, who helped things run smoothly online, has died
Dr. Floyd's papers provided a very clear exposition of the ideas, making them very accessible to undergrads with minimal CS education. I would strongly recommend them to anyone with an interest in the topics.
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