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jbullock35

674 karma · joined January 17, 2019

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jbullock35··on William Nordhaus has died
For what it's worth, a loss of "between 8.5 percent and 12.5 percent of world GDP" would be catastrophic. Relative to a baseline of 0% GDP growth --- which would itself be terrible --- a worldwide loss of 8.5% to 12.5% of GDP would entail the deaths of millions, and probably hundreds of millions.
jbullock35··on Hyundai buys Boston Dynamics
This recent article has a few relevant notes about the uses (or lack thereof) of humanoid robots: https://www.csmonitor.com/Business/2026/0612/ai-humanoid-rob....
jbullock35··on Man shot and killed by federal agents in south Minneapolis this morning
> Don't call me "disgraceful". Why? Because THAT is an ad hominem attack.

You're right about that. I'm sorry.

No further comment from me in this thread.

jbullock35··on Man shot and killed by federal agents in south Minneapolis this morning
> I don't know if this is your intent or not, but by engaging in this kind of framing you're essentially saying that all violence[1] is excusable by default. We're supposed to live in a society where the opposite is true, I thought.

> [1] All violence by your allied authority figures, that is. We both know you wouldn't grant the same grace and charity to the intentions of the protestors.

This is a disgraceful ad hominem attack. The previous poster's comment is entirely sensible, and it takes a great deal of intellectual dishonesty to portray it as a defense of ICE in any way.

jbullock35··on Man shot and killed by federal agents in south Minneapolis this morning
Thanks. The link is to a Bellingcat analysis. They did great work on the Renee Good shooting, but in this case, they're describing stills from videos, and I can't see what they're seeing in the photos. The photos are just too fuzzy---at least for me, and I suspect for most other viewers.

I don't mean to diminish the importance of the shooting, which is horrific no matter what one makes of the photos.

jbullock35··on Man shot and killed by federal agents in south Minneapolis this morning
Thanks. I watched the videos. It's a horrific event. But I can't see that either of the videos shows a gun being removed from a protester. At the end of [2], someone does seem to walk away from the scene holding a gun, just a fraction of a second before the shooting begins. But I can't see any point at which a gun is removed from a protester.
jbullock35··on Man shot and killed by federal agents in south Minneapolis this morning
I've watched four videos but haven't seen any footage (clear or otherwise) of gun removal. Can you post a link to clear footage of the removal?

One video [1] shows someone walking away from the scene with a gun a fraction of a second before the shooting begins. But I can't see that the gun was removed from the protester.

[1] https://www.reddit.com/r/law/comments/1qlvpbr/footage_of_the...

jbullock35··on Nearly a third of social media research has undisclosed ties to industry
From the article:

> A new preprint reports that in nearly one third of studies on social media appearing in major interdisciplinary journals, the authors have ties to industry that should be disclosed but aren’t. Some received funding from a social media company; others previously co-authored work with industry employees.

Note that last part. It makes this effort seem silly: there's no conflict of interest just because one of your past co-authors at one time worked for someone in the industry.

jbullock35··on jQuery 4
Oh, certainly, corporations run ten-year-old software. But for the record, IE 11 turns 13 this year [1]. Which makes it somewhat more surprising to me.

[1] https://en.wikipedia.org/wiki/Internet_Explorer_11

jbullock35··on jQuery 4
Who is still stuck on IE 11---and why?
jbullock35··on Hyundai Introduces Its Next-Gen Atlas Robot at CES 2026 [video]
I think that you're just off on timing. The previous poster didn't mention the even worse news for Tesla: its sales declined for the second straight year, and it's no longer the leading manufacturer of electric cars. (BYD is.)
jbullock35··on The New Kindle Scribes Are Great, but Not Great Enough
The previous Kindle Scribe had a slow refresh rate, and it showed every time you tried to turn a page. All I want so far as refresh rates are concerned is seamless page-turning – page-turning that doesn’t make me wait. Will this version of the Scribe be any better? The Wired review doesn’t say.
jbullock35··on The New Kindle Scribes Are Great, but Not Great Enough
I keep waiting for the Kindle to allow notetaking by dictation. It works well on an iPad; it’s so much quicker and smoother than handwriting notes.
jbullock35··on Why are 38 percent of Stanford students saying they're disabled?
When I was a student in the United States in the 1990s, I took many tests in which handwriting speed limited me. It was purely a physical problem. When I was permitted to type, there was no issue. To be clear, I'm speaking of tests in the humanities and social sciences, for which students must write short essays.

Later, when I was a professor in the United States, I saw some of my students grappling with the same problem.

I don't think that my students and I are extraordinary. Other people were, and are, limited by slow handwriting when they are required to handwrite their exams. You could try to identify these people and give them extra time. But the better move would be to stop requiring students to handwrite essays under a time constraint.

jbullock35··on Why are 38 percent of Stanford students saying they're disabled?
> Being able to read/write with some haste is not unrelated to job/academic performance.

Yes, I agree. But my point is about handwriting, rather than writing in general. Handwriting speed is something that we are effectively testing with many in-class exams. And handwriting speed - unlike reading or writing speed - is indeed unrelated to job performance. It is also unrelated to any reasonable measure of academic performance.

jbullock35··on Why are 38 percent of Stanford students saying they're disabled?
> In general, being good at academics require you to think carefully not quickly.

Yes, but to go even further: timed tests often test, in part, your ability to handwrite quickly rather than slowly. There is great variation in handwriting speed — I saw it as a student and as a professor — and in classrooms, we should no more be testing students for handwriting speed than we should be testing them on athletic ability.

In general, timed tests that involve a lot of handwriting are appalling. We use them because they make classroom management easier, not because they are justifiable pedagogy.

jbullock35··on Evanston orders Flock to remove reinstalled cameras
There is a larger issue that other commenters are missing:

> The city has paid the first two years of that extension but would still owe $145,500 for the final three years if the contract is upheld. The city intends to terminate the contract on Sept. 26 under its notice to Flock, but the company is challenging that termination, and the dispute could escalate to litigation.

The city is trying to terminate a contract with Flock. Under that contract, the city agreed to pay Flock for three more years of service. Flock maintains that the city doesn't have the right to nullify the contract. The linked article says almost nothing about the contract dispute, but another article [1] has some details.

I don't know whether the city is correct about its power to terminate the contract, or whether instead Flock is correct. Either way, I wonder whether Flock is re-installing the cameras out of fear that, if it doesn't, it will be voiding its right to future payment under the contract.

[1] https://evanstonroundtable.com/2025/08/28/flock-challenges-c...

jbullock35··on Programmers aren’t so humble anymore, maybe because nobody codes in Perl
Yes, that's what I had in mind. 1996 was still early—but perhaps the delay allowed PHP to get more of a foothold than it would otherwise have had, especially at such an early stage in the web's development.
jbullock35··on Programmers aren’t so humble anymore, maybe because nobody codes in Perl
Leaving aside issues of language design and the emergence of other languages, it's interesting to think about other reasons why Perl lost popularity. Some of you know this history better than I do, but I think that it's now unknown to most HN readers.

The enormous reason that I see is the insistence, from Larry Wall and others, on a bottom-up "community" transition from Perl 5 to Perl 6. The design process for Perl 6 was announced at a Perl conference in 2000 [1]; 15 years later, almost every Perl user was still using Perl 5. The inability of the Perl community to push forward collectively in a timely way should be taken by every other language community as a cautionary tale.

Tim O'Reilly made a secondary point that may also be important. For a long time, Perl books were O'Reilly's biggest sellers. But the authors of those titles didn't act on his suggestion that they write a "Perl for the Web" book (really a Perl-for-CGI book). Books like that eventually came, but the refusal of leading authors to write such a book may have made it easier for PHP to get a foothold.

[1] https://en.wikipedia.org/wiki/Raku_(programming_language)#Hi...

jbullock35··on MIT asks arXiv to withdraw preprint of paper on AI and scientific discovery
When you use it as a comma, it’s bad.
jbullock35··on Basis of the Kalman Filter [pdf]
I succeeded in understanding the Kalman filter only when I found a text that took a similar approach. It was this invaluable article, which presents the Kalman filter from a Bayesian perspective:

Meinhold, Richard J., and Nozer D. Singpurwalla. 1983. "Understanding the Kalman Filter." American Statistician 37 (May): 123–27.

jbullock35··on Perma.cc – Permanent Link Service
Prospective users are understandably concerned that perma.cc will go out of business. No institution can guarantee that it will exist in perpetuity. But perma.cc has at least published a contingency plan: https://perma.cc/contingency-plan.
jbullock35··on The legacy of lies in Alzheimer's science
I can't tell whether your post is a joke. Yes, Tessier-Lavigne was forced to resign. But Stanford let him stay on as a professor. That was terrible: they should have kicked him out of the university.
jbullock35··on Kalman Filter Tutorial
I found this article invaluable for understanding the Kalman filter from a Bayesian perspective:

Meinhold, Richard J., and Nozer D. Singpurwalla. 1983. "Understanding the Kalman Filter." American Statistician 37 (May): 123–27.

jbullock35··on Ask HN: Books about people who did hard things
I worked there a few years ago. It was almost always easy to reserve a room if you wanted more quiet or more privacy.
jbullock35··on Ask HN: Books about people who did hard things
The Power Broker is a superb choice for OP. This comment should be closer to the top of the thread.
jbullock35··on Ask HN: Books about people who did hard things
There's at least one huge respect in which tech is different, at least in the USA: worker compensation.

In the book, Tracy Kidder writes repeatedly about how Data General (the company at the heart of the book) is proud of its austerity. It doesn't pay well. It's proud of having an ugly, austere, warehouse-like building. It puts its critical engineers in the windowless basement of this building. Kidder is describing a world that's very far from the FAANG of today, at least were compensation is concerned.

jbullock35··on Facebook's Little Red Book
That was Aaron Sorkin’s story in The Social Network, but it seems to have been a fiction. Steven Levy’s history of the company is much more detailed (and Levy is trying to be faithful to the historical record, unlike Sorkin) – and it argues that there’s no evidence for this Sorkin story about Zuckerberg‘s motive.
jbullock35··on Bop Spotter
It's a very public place in the United States. It's not clear that people should expect or be entitled to much privacy in these public places.

We also know that, regardless of the degree of privacy to which people should be entitled, they're not legally entitled to much privacy in these places. Federal court rulings have been extremely clear on this point. In these places, we don't even have the right to not be photographed.

jbullock35··on Eyechat
We’ve needed this – easy, direct eye contact – for quite a long time. I keep waiting for someone to develop it. I think that Apple has a relevant patent, but I don’t know how much content is in the patent, and I’ve never heard that Apple has done anything with it.
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