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gnubison commented on Five disciplines discovered the same math independently   freethemath.org... · Posted by u/energyscholar
NitpickLawyer · 2 days ago
> it's not like it just flips.

Does this apply to that cool chem trick where a solution goes from black to transparent and back again a few times? I don't know enough to know if that's relevant or not, but I remember seeing that and be puzzled about how "sudden" the reaction appears.

gnubison · 2 days ago
Maybe the Briggs-Rauscher reaction?
gnubison commented on Feynman's Hughes Lectures: 950 pages of notes   thehugheslectures.info/th... · Posted by u/gnubison
gnubison · a month ago
To clarify, these aren’t the normal Feynman lectures. He lectured at a different institution and the author of this webpage transcribed those lectures to produce this set of notes. The content covered is different from the famous set of lectures.

The normal Feynman lectures are here: https://www.feynmanlectures.caltech.edu/

gnubison commented on Apple to focus on 'quality and underlying performance' with iOS 27 next year   9to5mac.com/2025/11/23/ap... · Posted by u/jb1991
MyFirstSass · 3 months ago
The number one priority must surely be fixing the keyboard, besides the horrible UX?

Millions are having problems for years so it's not just me, honestly thought i was "getting old" but no incredible amount of threads and now this on YT with 1 mil views:

https://www.youtube.com/watch?v=hksVvXONrIo

Wild typing on a 3210 was less stressful for me.

gnubison · 3 months ago
iOS repeated “learns” new words that I use that are misspellings of real words (because I mistype things in a predictable way). It becomes so convinced that it will autocorrect the real word into the typo. And knowing how the keyboard works, I wouldn’t be surprised if it enlarges the touch targets for the typo once it thinks I meant to use the typo.

The cause is obvious: Apple is training on what I type, not what I send. Apple does not consider that I actually care about the accuracy of what I send and will fix errors; perhaps they optimize for people who are careless enough to send typoed messages, yet niche enough to commonly use words not in the default dictionary.

It is infuriating that I have ~50 manual corrections telling Apple to leave words alone and correct certain typos to the real words.

gnubison commented on An Illustrated Introduction to Linear Algebra, Chapter 2: The Dot Product   ducktyped.org/p/linear-al... · Posted by u/egonschiele
tptacek · 3 months ago
So does Strang! (I just checked, Linear Algebra & Applications 4E).

Also: sir, this is a blog post. It's wild seeing people say "if you really want to understand this topic, pick up Axler". I mean, yeah, also if you were serious you could just enroll in your local community college's Linear Algebra course.

My feeling is that a lot of the critique here is really signaling. For whatever reason, linear algebra is super high-status in this community, and people want to communicate that they've done something serious with it. (I'm sure I'm guilty of that too.)

gnubison · 3 months ago
Strang does include that. I just checked the fourth edition, like you say you did. Scrolling down two pages to get to the first page of the table of contents, I see the heading “cosines and projections onto lines”. I navigate to that section and it explains all the logic, proof, and intuition behind the connection between angles and dot products. Please don’t spread misinformation…
gnubison commented on Why English doesn't use accents   deadlanguagesociety.com/p... · Posted by u/sandbach
dragonmost · 7 months ago
I feel not being understood when pronunciation is off is more of a France french issue. You will be understood eitherway in Canada (given you speak with french Canadians). But I sometime have difficulty being understood by frenchmans, less so with other french speaking cultures
gnubison · 7 months ago
It would be like a speaker who can’t distinguish the uh sound in “but” with the ih sound in “bit”. Is it really the native English speaker’s fault if he can’t understand that personal dialect?

France’s vowel inventory is bigger than (or just as big as) English’s, and it has a lot more homophones. I imagine all the context goes toward disambiguating the actual homophones and not the arbitrary sets of words foreigners can’t pronounce because they don’t want to learn the accents (the system is not that hard and completely predictable).

gnubison commented on Hilbert's sixth problem: derivation of fluid equations via Boltzmann's theory   arxiv.org/abs/2503.01800... · Posted by u/nsoonhui
killjoywashere · 7 months ago
David Hilbert was one of the greatest mathematicians of all time. Many of the leaders of the Manhattan Project learned the mathematics of physics from him. But he was famous long before then. In 1900 he gave an invited lecture where he listed several outstanding problems in mathematics the solution of any one of which would change not only the career of the person who solved the problem, but possibly life on Earth. Many have stood like mountains in the distance, rising above the clouds, for generations. The sixth problem was an axiomatic derivation of the laws of physics. While the standard model of physics describes the quantum realm and gravity, in theory, the messy soup one step up, fluid dynamics, is far from a solved problem. High resolution simulations of fluid dynamics consume vast amounts of supercomputer time and are critical for problems ranging from turbulence, to weather, nuclear explosions, and the origins of the universe.

This team seems a bit like Shelby and Miles trying to build a Ford that would win the 24 hours of LeMans. The race isn’t over, but Ken Miles has beat his own lap record in the same race, twice. Might want to tune in for the rest.

gnubison · 7 months ago
> the solution of any one of which would change not only the career of the person who solved the problem, but possibly life on Earth. Many have stood like mountains in the distance, rising above the clouds, for generations.

Whether or not this is AI, this comment is not true. An axiomatic derivation of a formula doesn’t change how it’s used. We knew the formulas were experimentally correct, it’s just that now mathematicians can rest easy about whether they were theoretically correct. Although it’s interesting, it doesn’t change or create any new applications.

gnubison commented on Microsoft Edit   github.com/microsoft/edit... · Posted by u/ethanpil
red_admiral · 8 months ago
Now I'm waiting for EDLIN but with unicode.

I remember you could use it in a batch file to script some kinds of editing by piping the keypresses in from stdin. Sort of a replacement for a subset of sed or awk.

I haven't tried but this should be possible with vi too. Whether that is deeply cursed is another question.

gnubison · 8 months ago
I think ed is what you’re looking for (possibly with -s).
gnubison commented on Spaced repetition systems have gotten better   domenic.me/fsrs/... · Posted by u/domenicd
chjj · 9 months ago
I don't think it's a strange comment. He's mostly right (and so are you, but I think you're talking past each other). There's nothing wrong with SRS, and I agree with you that it's basically like cheat codes for memorization, but there is a limit to what most people can do. i.e. most people do tend to drop off.

I remember reading some stats from WaniKani (Japanese SRS app) a while back...

WaniKani has 60 "levels" to learn 2000+ kanji. Each level takes about a week (there's no skipping ahead), so the material takes about a year of study to complete -- that's if you're going at breakneck pace, which most people aren't.

According to the numbers I saw on the WK forums, ~8% of users reach level 30 and less than 1% reach level 60... and that's just to learn as much kanji as a 9th grader. That's to say nothing of the grammar and the 20,000+ vocab words you'll need to SRS to truly learn the language, or the thousands of hours you'll have to spend speaking/listening/reading, immersing yourself in native content, etc.

People give up very easily. The language learning community often gives year estimates to reach "near-native level" in a language based on frequency of study. In reality, the process takes a lifetime. I don't know if people truly know what they're signing up for when install those apps and begin studying. It's a lifelong commitment. It's just something you do now, every day.

You can stop at any time of course, and most people do (more than 99% of them apparently).

gnubison · 9 months ago
The article specifically points out WaniKani as an example of a very bad implementation of spaced repetition (see the "FSRS in practice" heading, under the paragraph "for Japanese language learning specifically...").
gnubison commented on Writing that changed how I think about programming languages   bernsteinbear.com/blog/pl... · Posted by u/r4um
e-topy · 9 months ago
Commenting just because you can't favorite comments
gnubison · 9 months ago
Click the time (next to the author) to go to a page for the comment, where you will be able to favorite it.

u/gnubison

KarmaCake day303December 6, 2020View Original