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AprilArcus

718 karma · joined April 9, 2014

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AprilArcus··on Apple Big Pink #3 (1990) [pdf]
Oh, this is incredible! I've always wished I could have been a fly on the wall during this boondoggle.

"Jaguar", mentioned early in this document, was a RISC platform based on the Motorola 88000, which was abandoned in favor of and/or rolled in to the PowerPC project that shipped in 1994, four years after the date on this document.

AprilArcus··on What's new for RISC-V in LLVM 15
This seems like a radical position. On the web, Webpack is a sort of linker with affordances for streaming late-loaded code segments over the network, and it's indispensable. I have trouble seeing how doing away with linkers altogether would be feasible or desirable.
AprilArcus··on OOP “is really just a common sense extension of structured programming”
Thanks for the link, I'll enjoy reading this.
AprilArcus··on OOP “is really just a common sense extension of structured programming”
OOP's greatest crime is needlessly adding an I-thou dichotomy to the realm of programming languages. The "switching" or context sensitive properties of deictic pronoun referents is one of the last and most difficult linguistic skills that first language learners acquire. Class instances add deixis to programming languages, which never needed it and don't benefit.
AprilArcus··on Steve Jobs emails himself (2010)
I bet getting fired from your own company, having a few kids, and surviving a couple near-death experiences will do a number on your ego.
AprilArcus··on Apple AMX instruction set (M1/M2 matrix coprocessor)
I suspect, given Apple's pivotal role in founding ARM holdings, that they have as close to carte blanche with respect to the ARM IP as one could imagine.
AprilArcus··on Apple AMX instruction set (M1/M2 matrix coprocessor)
> The only reason Apple was allowed to do so in this case is likely 1) They negotiated it as part of their AAL (probably for a lot of money)

Apple fronted the cash that created ARM holdings in the first place, so yes, they invested quite a lot of money (well, relative to the other senior partners Acorn and VLSI and later investors), and ARM was hardly in a position to tell them "no".

AprilArcus··on We want to make Nix better
Just let me a pin a single package to a version number, for the love of God.
AprilArcus··on A generically typed pipe function in TypeScript
I think `Object.prototype.then` would break every source file that uses `typeof o?.then === 'function'` as a check for PromiseLike behavior.
AprilArcus··on Two weeks in, the Webb Space Telescope is reshaping astronomy
It could be that the model is wrong, or it could be that the model is correct and the big strike was an outlier. Only time will prove.
AprilArcus··on Two weeks in, the Webb Space Telescope is reshaping astronomy
"wavefront sensing recorded six localized surface deformations on the primary mirror that are attributed to impact by micrometeoroids. These occurred at a rate (roughly one per month) consistent with pre-launch expectations […] Of the six micrometeoroid strikes detected thus far through wavefront sensing, five had negligible effects".

So the overall number of impacts is consistent with the modeled rate, but the size of the C3 event was outside the modeled rate.

AprilArcus··on Integer math in JavaScript
Interesting that there are 15*(2^47) unused values in this scheme in the range FFFF:xxx1:xxxx:xxxx - FFFF:xxxF:xxxx:xxxx. Could these be put to any practical use?
AprilArcus··on 8-Part Film Adaptation of Tolstoy's Anna Karenina Is Free Online
I found Anna Karenina effortless, and I don't usually enjoy fiction. Perhaps it's just not the right book for you.
AprilArcus··on Sabine Hossenfelder – Are We Too Many People or Too Few?
Seems like an unwarranted assumption that "wanting a big family" is a heritable trait
AprilArcus··on Effects of moderate alcohol on fasting insulin and insulin sensitivity (2002)
This paper does not find that ingesting alcohol is beneficial for insulin sensitivity. It shows that ingesting alcohol is better for insulin sensitivity than ingesting sugar water.

> Women consumed either 15 g/d of alcohol (1 drink), 30 g/d of alcohol (2 drinks), or an isocaloric beverage (0 g/d alcohol) as part of a controlled diet in a randomized crossover design for 8 weeks per diet treatment. Each period was preceded by a 2- to 5-week washout period. Random allocation to treatment sequence and washout periods were used to eliminate carryover from previous treatment. All foods and beverages were prepared and supplied by the Center's Human Studies Facility. Menus were prepared to provide 54% of calories from carbohydrates or carbohydrates and alcohol, 32% from fat, and 14% from protein. Alcohol was supplied as ethanol (Everclear, Daniel Sherman Corp, St Louis, Mo) in orange juice (340 mL). Energy from alcohol was replaced with energy from carbohydrates (Polycose, Ross Products Division, Columbus, Ohio) and soft drinks

AprilArcus··on EU reaches deal to make USB-C a common charger for most electronic devices
There's no cable that has lightning on both ends; the 5V configuration has USB-A on the power supply side. My point is just that that lightning connector isn't limited to 5V.
AprilArcus··on EU reaches deal to make USB-C a common charger for most electronic devices
iPhone fast charging over lightning runs at 9 volts.
AprilArcus··on Please, don't build another Large Hadron Collider
off the cuff, non-exhaustive list:

  1930s — video image tubes
  1940s — nuclear power, atomic clocks, transistors
  1960s — lasers, fiber-optic communications, PET-CT scans
  1970s — MRIs
AprilArcus··on Ancient DNA may reveal origin of the Philistines
I'm pleased you enjoyed it. We can bandy words all we like, but it won't change the fact that we descend equally from mothers as well as fathers. By analogy, the fact that Kievan Rus' was founded by Vikings doesn't make the Russian people essentially Norse in some kind of metaphysical sense.
AprilArcus··on Ancient DNA may reveal origin of the Philistines
This comment is an accurate contextualization of the report within the broader literature. It appears to have been heavily downvoted, which seems to be a matter of patriarchal grievance culture revanchism rather than informed engagement with the material. What a shame.
AprilArcus··on Pixel Art: Common Mistakes (2020)
Step 3: Draw the rest of the owl
AprilArcus··on Minoan language Linear A linked to Linear B in new research
This article is a reasonable summary of the status quo in Linear A studies since 1956, but the reporter seemingly deliberately obfuscates the nature and scope of Dr. Ester Salgarella's new contribution.

It appears to be the creation of an online corpus in collaboration Dr. Simon Castellan, linked near the bottom of the article: https://sigla.phis.me/

This will be a great resource and is an important work, but it appears that today we are no closer to deciphering Linear A than we have ever been.

AprilArcus··on Ask HN: What are some good non-subscription Mac apps?
OmniGraffle single-handedly keeps me from switching to Linux. They have non-subscription pricing here:

https://store.omnigroup.com/omnigraffle?pk_vid=40876fd2b0ffb...

AprilArcus··on Moving a macOS window by clicking anywhere on it
By default, command-click enables "focus follows mouse"-like behavior, allowing you to manipulate the widgets of background windows without bringing them to the foreground.
AprilArcus··on Ancient Genes for Symbiosis Hint at Mitochondria’s Origins
> do you believe supplementing exogenous ATP would reduce mitochondria energy generation and therefore oxides gen?

ATP is a highly unstable molecule, precisely due to its high energy content. It cannot be effectively supplemented exogenously.

AprilArcus··on Ancient Genes for Symbiosis Hint at Mitochondria’s Origins
I don't enjoy the science writing at Quanta. Their articles in fields I know something about are so inarticulate and misleading that I have to doubt whether their reporting in fields to which I am largely ignorant (particularly the publication's namesake, quantum mechanics) would stand up to scrutiny.

In this case, you should know that the phagocytic model of endosymbiosis has been radically upended since the successful culturing of a Lokiarchaeota in (ecto)symbiosis with a delta-proteobacterium in 2019 by Imachi et al.

"Isolation of an archaeon at the prokaryote–eukaryote interface" https://www.nature.com/articles/s41586-019-1916-6 doi.org/10.1038/s41586-019-1916-6

The striking images of the branching, filamentous prokaryotic Lokiarchaeotum grappling its metabolic partner resembled nothing I had ever seen in biology before, save maybe the mycorrhizal root nodules of a legume at a ~2000x smaller scale. The prevailing model of the process of eukaryotic endosymbiosis is now "entangle-engulf-endogenize", rather than phagocytosis, which might be a secondary post-mitochondrial lifestyle adaptation.

If the Nature paper is difficult for you to read or access, this summary is well written and provides better citations than the Quanta article.

"Challenging Eukaryogenesis: The Story of the Eukaryotic Ancestor" https://arxiv.org/abs/2008.06608 doi.org/10.48550/arXiv.2008.06608

If you are interested in this topic, I cannot praise Nick Lane's nonfiction trilogy of books on mitochondria and evolution highly enough:

  • "Oxygen: The Molecule that Made the World" (2002)
    https://www.amazon.com/Oxygen-Molecule-that-Made-World/dp/0198508034
  • "Sex, Power, Suicide: Mitochondria and the Meaning of Life" (2005)
    https://www.amazon.com/Power-Sex-Suicide-Mitochondria-Meaning/dp/0192804812
  • "The Vital Question: Energy, Evolution, and the Origins of Complex Life" (2015)
    https://www.amazon.com/Vital-Question-Evolution-Origins-Complex/dp/0393088812
AprilArcus··on Ruby 3.2 preview 1 with support for WASM compilation
Not really. Opal is a source-to-source compiler that compiles Ruby to JavaScript. Ruby 3.2 compiles the whole Ruby VM and runtime to wasm, which then runs Ruby inside a real Ruby VM nested within the JS VM.

A good analogy is that Opal is like PureScript, whereas Ruby 3.2 is like GHCJS.

AprilArcus··on Ruby 3.2 preview 1 with support for WASM compilation
it post-dated and took inspiration from Mozilla's asm.js, which was highly influential on wasm.
AprilArcus··on Working with classic Macintosh text encodings in the age of Unicode
It's been 18 years since Apple sold a computer that could boot into HFS.
AprilArcus··on Crypto is an unproductive bubble
So you're opposed to dividends as well?
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