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jordan_curve

167 karma · joined August 11, 2020

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jordan_curve··on Conversations almost never end when both parties want them to: study
Presumably the subjects in the study had no prior relationship so hierarchical structure shouldn’t have played a significant role.
jordan_curve··on Generating ePub from LaTeX
If you find success doing this with pandoc, please consider writing another blog post! I’ve had a ton of similar issues in this space and reading your solutions has given me a bunch of ideas.
jordan_curve··on Generating ePub from LaTeX
Nice work. There is not enough support for stuff like this.

I’ve wanted forever to have a nice way to convert latex files to html. I wish I could use latex for my static site instead of markdown and I’ve tried a few things but nothing is consistent enough. This gives me a ton of hope!

jordan_curve··on Crypto and NFTs are a absolute disaster for so many more reasons than ecological
That seems like a legitimate question although you’ve rephrased it somewhat uncharitably.
jordan_curve··on What’s Wrong with “Multiplication Is Repeated Addition”? (2008)
To make this more explicit, mathematics (even at the primary school level) is arguably more about “proving” things than it is about computation.

Obviously you’re not writing proofs in 3rd grade, but the emphasis should be on students being able to say why their answer is correct rather than just being able to produce the correct answer.

jordan_curve··on Microdosing study shows the placebo effect of taking psychelics
Huh? Obviously if you dismiss all of the bad anecdotes and none of the good ones, you’re only going to have good anecdotes

My mom’s brother went into psychosis during an acid trip and eventually schizophrenia. He killed himself when he was 24.

I think hallucinagens are fun recreationally and clearly have the potential for positive therapeutic use, but let’s not pretend that it’s always positive, especially in uncontrolled settings.

jordan_curve··on Microdosing study shows the placebo effect of taking psychelics
The fact that psilocybin can potentially have positive therapeutic effects in controlled environments does not mean people “microdosing” experience those effects.
jordan_curve··on How prepared are we for the next giant solar flare?
It’s pretty weird reading that Atlantic article in a world with covid.
jordan_curve··on Yellen Summons Regulators to Discuss Financial Market Volatility
So what? After you’ve become the fed chair you’re no longer allowed to make money? Suddenly the pool of people who will ever agree to take the job gets smaller and it will be held by much wealthier people on average.

Or I suppose you could say that anyone who has held a government position, left it, and then ever made money in the private sector is ineligible for future government work. In effect all this does is just bar past officials from being elected again. This again reduces the pool of qualified talent by a lot. Janet Yellen is probably the most qualified person in the country to be the fed chair, it seems like she should be allowed to imo.

jordan_curve··on Yellen Summons Regulators to Discuss Financial Market Volatility
Generally believed by whom? People on the internet?

Is there real evidence of paid speeches being bribery? As others have said about 100k-500k is the going rate for corporate speeches from athletes, actors, etc.

jordan_curve··on The Most Popular College Books
I don’t think Hobbes’ view of the state of nature has much to do with why it’s taught at all, nor do I think it is the main thing students takeaway from the book. Most of these schools are also going to emphasize that Hobbes lived during a time of civil war and intense strife.

It’s the foundational and most coherent argument for the social contract that would eventually come to define liberal democracy. I don’t think students are reading this thinking they need to “wield power.” That’s pretty disingenuous and is seems like unsubstantiated anti-elitism. Almost everyone disagrees with Hobbes’ conclusion, but understanding where exactly his argument breaks down gives very good insight into the theoretical underpinnings of western democracy.

jordan_curve··on Apple's privacy labels show WhatsApp and Facebook Messenger hunger for user data
If it’s end-to-end encrypted, why would intercepting the message be an issue?
jordan_curve··on Facebook senior software engineer interview
I think you’re misunderstanding the author. The sentence after the one you quoted is

> Most of these companies have solid internship programs, and almost all E3 (entry-level) positions are offered to returning interns.

The author is saying that getting an entry-level position without an internship is very difficult at these companies and so if you want to work at one, applying as a senior engineer is a much easier route.

FWIW, I work at one of those companies and have found senior roles and promotions to actually be pretty biased toward longtime employees

jordan_curve··on Facebook senior software engineer interview
The content of the boards exam is actually quite comparable to the content of these interviews. They both cover general knowledge and fundamental concepts that very few working programmers or doctors will ever use, but absolutely should know.
jordan_curve··on Apple reverses stance on Amphetamine App
> Is the product good? Yes or folks wouldn't buy it.

This would indicate that there is no monopoly.

jordan_curve··on Apple’s longtime supplier accused of using forced labor in China
That comparison could just as easily be said to belittle what actual forced labor is.

I don’t think it’s helpful to compare which atrocity is worse.

There are many societies that have had lots of norms or laws protecting slaves from various forms of harm. That’s of course not to say slavery was acceptable in those societies on any level, but many slaves lived more comfortable lives than those who eventually died of malnutrition at Auchwitz-II.

jordan_curve··on Apple’s longtime supplier accused of using forced labor in China
It’s not slavery. They’re similar atrocities though. It would be weird to refer to the people in Auchwitz-II as slaves.
jordan_curve··on Slack is the right tool for the wrong way to work
I feel the exact opposite. If someone emails me, I’m likely to not see it, but if someone @s me on slack there’s no chance I miss it.

The whole upside of slack for me is that it makes it easier for me not to miss the things I absolutely need to see. I get a deluge of automated or templated emails every day. How am I ever supposed to reliably sift through the noise?

jordan_curve··on Binary Decision Diagrams (2010)
Quantum computers can see information about more than one word with just a single “look.”

You’re right to think this is impossible though. Grover’s algorithm was one of the first examples of something that clearly could not ever exist classically.

jordan_curve··on Beirut Port Explosion
That’s how it works in the U.S. as well. The political parties are made up of coalitions of voters and over time certain groups shift or change affiliation.
jordan_curve··on The Black Hole information loss problem is unsolvable
You only know that there will be a red spot on the wall based on your past experiences with the physical world. Why should we believe our experiences in the past are at all relevant to the future? We haven’t lived in the future. The laws of gravity could be totally different.

All of our data about gravity is equally consistent with the theory “If I drop an apple it will fall only if it is before December 2020” as it is with our theory that the law of gravity will continue to exist in the future as it does today.

jordan_curve··on San Francisco voters approve taxes on highly paid CEOs, big businesses
Do you have a source for the 2:1 ratio in Seattle? I ask not because I think it’s false, but because I was looking for similar data earlier and couldn’t find it.
jordan_curve··on Vimflowy
As someone who has only loosely dabbled with emacs and org, is there a reason that an org equivalent couldn’t exist in vim?

I know there’s vimwiki and stuff but I mean is there a reason that the full functionality of orgmode couldn’t be ported to vim (modulo some keybindings)? Does it really on having more control over the UI than just what’s available in a terminal?

jordan_curve··on On Abandoning the X Server
Yep. People can complain about Nvidia’s refusal to comply to standards as much as they want, but at the end of the day, there is never going to be widespread adoption of Wayland until Nvidia hardware is fully supported.
jordan_curve··on On Abandoning the X Server
Is wlroots still incompatible with Nvidia hardware?
jordan_curve··on Free Linear Algebra textbook
Matrix multiplication is the composition of linear maps. It’s sometimes lost in the more computational approach, but we can think of this geometrically. If you know the first matrix rotates the plan by some amount, and the 2nd rotates it in the same direction as well, then the product must be the rotation matrix that rotates by the sum of the original rotations. That’s a very simple example. Since every nonsingular matrix is just a change of basis, you can get a rich geometric understanding for multiplying matrices. Moreover when things get more complicated, we can use invariants like the determinant and the trace to help guide our intuition.

I’d highly suggest watching 3Blue1Brown’s videos on Linear Algebra. He won’t get you to understanding everything (you’ll need to sit down and do problems for that) but he will help you see what intuition is out there in a very beautiful way. He makes a very good point that often when we go through the computations without the geometric intuition, we can spend a ton of time crunching numbers to see results that should have been obvious.

jordan_curve··on Ask HN: Is there a website specialized in mathematics courses?
Absolutely you should not use 3B1B as a replacement for reading a textbook and doing problems.

However, I don’t think you that means you should skip watching 3B1B videos at all. In fact, Grant repeats quite often in his videos that they’re not a substitute for doing problems.

I’d highly recommend watching the videos side by side with reading through Axler. They will help develop the right geometric intuition (which Axler does a decent job of, but books can only do so much as a medium). I believe the 3B1B videos can also be quite motivating, which in my experience is the most important factor when self studying.

jordan_curve··on AI’s “world in chains” scenario
It didn’t work out so well for the Athenians...

My naive guess (as someone who is not at all a historian) would be that democratic states historically tended to have more functional economies and thus won wars more often.

On the other hand, democracies can be particularly susceptible to demagoguery during wartime. This is what caused the collapse of the Athenian empire (at least if we’re to trust Thucydides’ account).

jordan_curve··on Advice to my young self: forget side projects and focus on your job
I don’t think the article ever suggests that you shouldn’t work on side projects if it’s something you enjoy as a creative outlet. It’s saying that you shouldn’t work on side projects as a way to advance your career.
jordan_curve··on Sets and Probability
I’d just make a slight correction in case anyone was confused. The book actually only has two chapters, one on the Lebesgue Measure and one on Abstract Measures. When the person above me said skim the first few chapters they meant sections of the first chapter. I’ll admit it’s a somewhat confusing way to lay out the book.

I also can’t recommend this text enough for anyone looking to learn measure theory. Tao is not only one of the brightest research mathematicians but also is extremely good at communicating and framing concepts.

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