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MathMonkeyMan

2,630 karma · joined November 28, 2019

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MathMonkeyMan··on The last time my family was replaced by technology
That's a good point. I'll add that killing someone (even yourself) with a public chat bot is a drawn out affair. With a car it happens all the time.
MathMonkeyMan··on We’re forgetting what darkness feels like
Fortunately it's growing smaller all the time. Very slowly.
MathMonkeyMan··on What California is learning from solar panels built over irrigation canals
The interstate highway system in the US has to straighten out every so often so that a plane can land on it. Otherwise I like the idea, except that you'd need more pylons per panel since a continuous run of panels might shade the road too much. Maybe run them in a strip over all of the existing light poles?
MathMonkeyMan··on I don't want to read what you didn't write
> For some people expressing their thoughts in words is really, really hard.

I suspect it is for everybody, but I might be blowing smoke up my own ass.

MathMonkeyMan··on Singapore’s National Library Board offers micropayments to build reading habits
I didn't read OP's remark as "few people make long use out of e-readers," but rather "many more people have e-readers and don't use them," which I'm willing to believe but don't have any evidence of. At the very least it's likely to reflect the case with physical books. The people who don't read you don't hear as much from.
MathMonkeyMan··on English: A vs. An
Also [a history vs. an history][1].

[1]: https://www.reddit.com/r/grammar/comments/1ssrby/an_history_...

MathMonkeyMan··on English: A vs. An
Is it "a LLM" or "an LLM"?

More generally, do you choose the article as if the first letter of the initialism were pronounced or as if the first word of the initialism were pronounced? Does it differ with acronyms? Does it differ between the UK and America?

MathMonkeyMan··on Eating Fruit Skins
My dad said that he older he gets, the more of the apple he eats.
MathMonkeyMan··on Mexican student creates an acoustic fire extinguisher to put out fire in seconds
When an oil well goes off, high explosives can be used to extinguish it. Maybe this is the same principle.
MathMonkeyMan··on Show HN: What if the speed of light was 5 km/h?
Funnily enough, I use Cloudflare Warp at work, and it breaks my site for what I think are DNS related reasons. Maybe there are some more exotic DNS keys that I need to add.

Or I could go back to IPv4 with dynamic DNS, but that would mean changing domain registrars.

MathMonkeyMan··on Show HN: What if the speed of light was 5 km/h?
Interesting

    david@carbon12:~ $ dig +short AAAA home.davidgoffredo.com
    2603:7000:5101:de1c::cafe:babe
I'll have to look into it, thanks for the QA testing everyone.
MathMonkeyMan··on Show HN: What if the speed of light was 5 km/h?
No, but IPv6 only these days. I never set up dynamic DNS.
MathMonkeyMan··on Show HN: What if the speed of light was 5 km/h?
The proper time (that is, the time the traveler measures on a clock) goes to zero very quickly towards the end. Even with both axes plotted logarithmically, it's just a sudden drop at the end towards light speed.

- [pic](https://home.davidgoffredo.com/hackernews/proper-time-one-li...)

- [plot](https://home.davidgoffredo.com/hackernews/proper-time-one-li...)

MathMonkeyMan··on Feather Atlas
I thought that it was going to be a new battery powered microcontroller board with cloud database integration.
MathMonkeyMan··on Scientists observe Einstein's gravity in the quantum world
Here's the [paper][1] on the arxiv.

I found it hard to believe that they accounted for other forces precisely enough that they could attribute the phase change to gravity, but this is beyond me so I trust the result.

At first I thought "they showed that you can measure a particle falling in gravity," which seemed dumb because we already know that particles fall in gravity. But they showed that you can measure a single (aggregate) particle falling in gravity, which is pretty cool because if gravity is quantum then that means that they observed an interaction between the graviton and their rubidium atom.

[1]: https://arxiv.org/pdf/2502.14535

MathMonkeyMan··on Simple Is Not Small
Maybe part of it is that fully functional notation necessarily preserves certain properties of the computation, while imperative style doesn't have to. For a complex piece of code, all of the hairiness is manifest in a functional style, but can be made implicit in an imperative style. So there's an economy to the imperative approach as things get complex, but in a sense we're just laundering the complexity from understanding the machinations of the code to understanding the correctness of the code.
MathMonkeyMan··on Simple Is Not Small
This is beside the point, and I'm being pedantic, but the unix pipeline and the clojure expression don't quite do the same thing.

The clojure expression reads the entire file into memory first, and then operates on that memory representation.

The pipeline processes the input in chunks. The two `sort`s might read the entire contents into memory, but an implementation like GNU sort will instead, for large inputs, create temporary files for sections of the input and then merge sort them to the output.

You could make clojure do the same thing, but it might not be as "simple" as the pipeline.

MathMonkeyMan··on Is There I/O After Death? What Happens to Io_uring When a Process Dies
I'm a lowly shell, but in another life I aspire to achieve greatness through docker.
MathMonkeyMan··on Holden's Lightning Flight
typical Jim
MathMonkeyMan··on Engineered yeast for converting plastic and biomass compounds to food additives
No, the plot of The Andromeda Strain is about a low orbit bacterium that clots blood very quickly but is extremely sensitive to blood pH.
MathMonkeyMan··on More than half of adults in U.S. say they lack basic statistical understanding
Yeah I figure I'm "well educated" and I never took a real statistics class and so never learned the definition of a p-value. I also don't know about the Wars of the Roses or Millard Fillmore. I did learn about Hildegard von Bingen and Laguerre polynomials.
MathMonkeyMan··on More than half of adults in U.S. say they lack basic statistical understanding
<https://en.wikipedia.org/wiki/Motivated_reasoning> affects us all. I'd like to believe education is an antidote, but really the only antidote is... not doing that.
MathMonkeyMan··on Tooltips need a delay, and then they need to skip it
It's phones. Nobody uses computers anymore (for some statistical definition of "nobody"). There's no pressure to make precise and consistent UIs because poke poke poke poke.
MathMonkeyMan··on Where did all the public bathrooms go?
That's a nice park. Most dudes I assume piss on the sidewalk.
MathMonkeyMan··on Black hole singularity is a surface not a point
[This video][1] and the one before it on the playlist are a good no nonsense explanation of the topic.

[1]: https://www.youtube.com/watch?v=O_2vnb_eVGE

MathMonkeyMan··on OTel isn’t going well
Tracing is the most general of them, and the most expensive unless you're careful with the implementation.

Trace spans are time-delimited units of "stuff that happened", with a tree relationship among the spans, and each span can have arbitrary tags (key/value pairs) and events (time/value).

From that, if you chose, you could derive metrics and logs. The trick is to start with tracing and to actually put it in your program, rather than trying to mostly-automatically tack it on later.

MathMonkeyMan··on Kobo can run apps now
Give Rakuten your money!
MathMonkeyMan··on Kobo can run apps now
I went through a whole design phase with ChatGPT on the idea of using an old Kobo as a low-distraction TV remote for my dad. The idea is that it would interface with a computer media server thing, be more legible than a traditional remote, and not be an app on his phone that would immediately send him into his phone.

Ended up being more involved than the benefit it would bring, especially considering that these media server programs know how to interface with the traditional remote over HDMI (if you have the right graphics card or a dongle) and show the selection UI on screen like a smart TV.

Anyway, my response is "you don't necessarily have to complicate your e-reader, instead you have the option of making it not an e-reader."

MathMonkeyMan··on Mycorrhizal Infrastructure Map
Proud to see that my home state of Florida is absolutely lit up with root fungus.
MathMonkeyMan··on Firefox is now the last major browser that still supports uBlock Origin
It's cozy!
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