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Qem

6,611 karma · joined June 17, 2020

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Qem··on Researchers complete first human trial on viability of enteral ventilation
> Free divers who can go deeper

Makes me wonder if free divers could possibly already cheat by swallowing air, perhaps even pure O2, before dives, to slightly increase maximum time submerged through gut gas exchange. Althought this probably would mess with buyoancy a bit.

Qem··on Researchers complete first human trial on viability of enteral ventilation
The proof of concept by sea cucumbers probably predate us by several hundred million years[1]. I wonder how .any more people could be saved from COVID with this deployed.

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

Qem··on Don't Force Your LLM to Write Terse [Q/Kdb] Code: An Information Theory Argument
> The purpose is being understandable by a person of average intellect and no specialized training.

The purpose probably is keeping human speech understandable through the often noise-filled channel of ambient sound. Human speech with no redundancy would have a hard time fighting the noise floor.

Qem··on Free Programing Books
The Pharo site has a section with several free books on the language: https://books.pharo.org/
Qem··on Mysterious Intrigue Around an x86 "Corporate Entity Other Than Intel/AMD"
That makes me wonder if all those vector extensions pilling on top of each other were really that necessary, or if they are mostly a means of keep churning out patents to delay expiration.

Is it possible to just improve the original SSE extensions in a logical backward compatible way? Similar to what AMD did to x86, widening it to x86-64, dooming Intel efforts to push the incompatible Itanium architecture?

Qem··on Mysterious Intrigue Around an x86 "Corporate Entity Other Than Intel/AMD"
SSE2 was released circa 2000[1]. Assuming a patent lasts for 20 years, it should be expired for several years now.

[1] https://en.wikipedia.org/wiki/SSE2

Qem··on Linux Mint Debian Edition7 "Gigi" Released
It's nice mint developers have an insurance policy against upstream woes. Makes me sleep better at night, even if I didn't switch for the Debian based version yet, knowing it's harder for the project to suffer some rug pull similar to what happened to CentOS.
Qem··on Mysterious Intrigue Around an x86 "Corporate Entity Other Than Intel/AMD"
There are others too. See https://en.wikipedia.org/wiki/List_of_x86_manufacturers
Qem··on Like MS Excel, Pivot tables never die
> WHY wouldn't Microsoft just run it in the local interpreter on the machine?

Probably to tighten vendor lock-in.

Qem··on Like MS Excel, Pivot tables never die
> Just because some people misuse it as database or it doesn't scale well beyond a couple of 10k rows does not make it a bad product.

It's not just that making it a bad product. Those are minor annoyances when compared with it trying to keep your data hostage in opaque formats[1] and exfiltrating your data to the cloud[2].

[1] https://blog.documentfoundation.org/blog/2025/07/18/artifici...

[2] https://superuser.com/questions/1903431/how-to-stop-excel-36...

Qem··on Like MS Excel, Pivot tables never die
Pivot tables are available on LibreOffice as well: https://help.libreoffice.org/latest/en-US/text/scalc/guide/d...
Qem··on Chinese gang used ArcGIS as a backdoor for a year – and no one noticed
Fortunately I ditched it for QGIS years ago.
Qem··on Gravity Can Explain the Collapse of the Wavefunction (Sabine Hossenfelder)
> How does gravity tell you the charge of a particle?

Perhaps you can just assume a radius where the electron self-repulsion energy equals its own mass, by m = E/(c^2).

Qem··on Supermassive black holes locked in a stable orbit around each other
Such a system would make easy[1] for any civilization living nearby to launch spaceships at a large fraction of the speed of light. But the tricky part would be braking at the destination, unless your destination is a similar and suitably aligned system.

[1] https://www.centauri-dreams.org/2023/06/08/freeman-dysons-gr...

Qem··on A ~2000 Elo Python chess engine
If the ~2000 Elo rating is running under CPython, I wonder how much would it achieve running under PyPy.
Qem··on The World's 2.75B Buildings
> I would love to have an air conditioning / cooling solution that is directly linked to solar panels with no batteries involved.

I think that would be very viable with fridges, that represent a large share of electricity consumption among the poorest. Before electricity, people powered fridges by constantly buying ice blocks. They were just isolated boxes where food was stored together with the blocks. Perhaps it's just necessary to go back at the roots, and make fridges that take energy from solar panels and generate a lot of ice by day, and uses it to keep cold at night, with no need for batteries.

Qem··on Ask HN: Abandoned/dead projects you think died before their time and why?
FirefoxOS
Qem··on Ask HN: Abandoned/dead projects you think died before their time and why?
20 years behind get us back to Windows XP, that had a better experience than Windows 11 anyway.
Qem··on The World's 2.75B Buildings
> The United Nations (UN) believes there are 4B buildings on Earth. This week, a dataset called "GlobalBuildingAtlas" (GBA) was published by researchers at the Technical University of Munich (TUM) that attempts to estimate this number at being closer to 2.75B.

If we painted the roofs on all of them white, by how much would the temperature of the planet drop?

Qem··on ElementaryOS – Thoughtful, capable and ethical replacement for Windows/macOS
IIRC ElementaryOS had the distinction of using mostly Vala/Genie for development of distro specific software. Is that still the case?
Qem··on Microsoft lets bosses spot teams that are dodging Copilot
> guess teams that are clever enough to avoid Copilot are also clever enough to write a script to call it on repeat in the background

Perhaps this and also filling onedrive free space with random noise, to waste MS some storage in addition to CPU/GPU cycles.

Qem··on The Burrows-Wheeler Transform
What were the reasons given, if any? Are they publicly known?
Qem··on Telegram's founder Pavel Durov sends alarmist message to all Telegram users
Or Whatsapp is an op run by Mossad: https://www.business-humanrights.org/de/neuste-meldungen/opt...
Qem··on Julia 1.12 highlights
> Even 7-8 years ago people we're still having Python vs R debates.

They still have to this day.

Qem··on Ortega hypothesis
> Nobody has capacity to read the works of a miriad of nameless scientists

It gets condensed over time. Take for example Continental Drift/Plate Tectonics theory. One day Alfred Wegener saw the coasts of West Africa and East South America were almost a perfect fit, and connected the dots. But he had no need to read the work of the many surveyors that braved unknown areas and mapped the coasts of both continents in the previous 4-5 centuries, nautical mile by nautical mile, with the help of positional astronomy. The knowledge was slowly integrated, cross checked and recorded by cartographers. Alfred Wegener insight happened at the end of a long cognitive funnel.

Qem··on Ortega hypothesis
> Newton - predicts that most advances are made by standing on the shoulders of giants.

Leibniz did the same, in the same timeframe. I think this lends credence to the Ortega hypothesis. We see the people that connect the dots as great scientists. But the dots must be there in first place. The dots are the work of the miriad nameless scientists/scholars/scribes/artisans. Once the dots are in place, somebody always shows up to take the last hit and connect them. Sometimes multiple individuals at once.

Qem··on Megafauna was the meat of choice for South American hunters
Meat spoils fast. So your society would need no record keeping(writing) because without refrigeration or salt mining you can't store meat like grain. Animals move around, so taking tons of meat kilometers back to the village takes time that's already counting for spoilage. So you are less likely to have a village in first place. That would be more pratical to go full nomadic and set temporary camp near the carcass of the more recently slaughtered multi-ton beast. No need to transport anthing besides yourself.

> I also don't entirely follow your point that goes from 'backbreaking work' to 'sedentary lifestyle'. The latter only happened in the post war years when we worked out how to have all of the energy we need on tap

By sedentary lifestyle I don't mean individual sedentarism, like being a couch potato. I mean society-wide, in the sense of not living in permanent settlements were people spend their lives mostly in the same plot of land, but are constantly on the move.

Qem··on Megafauna was the meat of choice for South American hunters
I wonder if the extinction of most megafauna happening just before the advent of agriculture and the first civilizations is not just coincidence but direct causation. We spent ~200kyr with a lot of "easy" calories roaming around. So no need for complex societies. Once we caused our first "end of the world" overhunting with stone age technology, and they were gone, the only remaining alternative for the survivors was meager small game that had to be complemented with backbreaking work in the fields trying to raise more plant food. Thus agriculture got popular. With it the need for record keeping and sedentary lifestyle. Only then civilization could be kickstarted.
Qem··on Space Mission Options for Reconnaissance and Mitigation of Asteroid 2024 YR4
Also https://en.wikipedia.org/wiki/1930_Curu%C3%A7%C3%A1_River_ev...
Qem··on Earth was born dry until a cosmic collision made it a blue planet
> ...when we drain the planet dry of easily-accessible fossil fuels we’ve deprived any successor civilization of its opportunity to escape the planet.

On the flip side, that could also be plausibly a blessing, avoiding them to fall into the same trap of becoming too powerful before they get wise. These comics illustrate it: https://www.badspacecomics.com/post/grounded

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