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Qem

6,611 karma · joined June 17, 2020

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Qem··on Minerals represent potential biosignatures in the search for life on Mars
> Which in turn depends on the endosymbiosis of mitochondria.

Which in turn depends on existing enough atmospheric oxygen for mitochondria to make sense in first place. I believe the filter is atmospheric oxygen. If Earth had more iron in the crust, perhaps the cyanobacteria would never finish oxidizing all of it, and we would be doomed to only host microscopic life forever. Macroscopic life requires high-energy metabolism molecular oxygen allows.

Qem··on Dietary omega-3 polyunsaturated fatty acids as a protective factor of myopia
> but you need to buy a fancy brand to avoid rancid oil or heavy metal contamination both of which ~null out the benefits

I didn't know about the rancidity problem, thank you. Knew about the contamination issue. To avoid it, I tried to source oil derived from sources lower in the food chain, either vegan algae oil, or krill oil. But krill oil is super expensive, when compared to fish oil, with lower levels of EPA/DHA per capsule. The problem with algae oil it's that those I've found contain only DHA. Not sure about the relative importance between EPA/DHA, although.

Qem··on Dark-Colored Cars Can Raise Urban Air Temperatures by Several Degrees
They also get increased crash risk: https://www.team-bhp.com/forum/attachments/indian-car-scene/...
Qem··on Navy SEALs reportedly killed North Korean fishermen to hide a failed mission
If later the murdered fishermen are identified and their stories known, is it possible for their families to seek compensation from USG?
Qem··on A sunscreen scandal shocking Australia
IIRC Robocop predicted this.
Qem··on Stone Age settlement found under the sea in Denmark
> Rising sea levels aren't new, it's ancient. Buying coastal properties always carries risk.

40% of the world’s population lives within 100 kilometers of the coast[1]. If one person makes a bad purchase of land, the problem is theirs. If 3 billion people make bad purchases of land, that's a problem for everyone in the world.

Probably we can't blame most of those people for much beyond being born where they were.

[1] https://www.un.org/esa/sustdev/natlinfo/indicators/methodolo...

Qem··on The ABC Programming Language
Is it still mantained and instalable under current OSes?
Qem··on Red: A programming language inspired by REBOL
https://en.m.wikipedia.org/wiki/BRL-CAD
Qem··on New research reveals longevity gains slowing, life expectancy of 100 unlikely
https://en.m.wikipedia.org/wiki/Greenland_shark
Qem··on New research reveals longevity gains slowing, life expectancy of 100 unlikely
> Lobsters, flatworms, immortal jellyfish and hydras are all believed to be immortal.

What is the oldest known living individual for each of these species, and for how long are they alive?

Qem··on New research reveals longevity gains slowing, life expectancy of 100 unlikely
With current demographic trends I wonder if we'll eventualy see longevity decrease, due to a large number of people arriving at old age without owning a home and no children/siblings to provide support or just check on them from time to time.
Qem··on WebR – R in the Browser
Can you install it as a progressive web app, to work offline as well?
Qem··on Microsoft says U.S. law takes precedence over Canadian data sovereignty
> the eu employees whe are the only ones with the passwords to get it are legally required to refuse

Can EU ever be sure Microsoft's mothership didn't backdoor the systems in use by the EU child-org, to bypass the local crew completely, just in case? Short of reimplementing everything in parallel from scratch, I doubt headquarters can really be completely locked out and be unable to get overseas data if they are hard pressed to do so by USG.

Qem··on When you're asking AI chatbots for answers, they're data-mining you
I never interacted with the AI Meta bundled to whatsapp fearing this.
Qem··on The road that killed Legend Jenkins was working as designed
I wonder how much are cars contributing to the current fertility crash. The multi-ton metal projectiles that clog the streets and we call cars make the urban landscape hostile to children. They can't be raised "free-range", demanding constant micromanagement from parents indoors.
Qem··on Review of Anti-Aging Drugs
> This, and the fact that Ascorbic acid leads to hardening of the arteries also makes it suspect.

Source?

Qem··on They're Killing the Humanities on Purpose
> Humanities came late to the game and try to claim the honor without actually having done anything.

IIRC some early programming languages were even tailored to the humanities, like Snobol.

Qem··on When the CIA got away with building a heart attack gun
There was claims of a possible cancer "gun". See https://www.ibtimes.com/hugo-chavez-says-us-could-be-giving-...
Qem··on A few programming language features I'd like to see (2023)
> Datalog/Prolog as a sub-language

> And I’d like to be able to call into this pure declarative logic from an imperative shell that handles all the messy stuff. Is that too much to ask?

There is at least one pure Python implementation of Datalog sitting on PIP, pyDatalog[1][2]. It's not part of the standard library, but it's one PIP install and one import away. So this item is one of the lowest hanging fruit in the wishlist, at least for Python.

[1] https://github.com/pcarbonn/pyDatalog

[2] https://pypi.org/project/pyDatalog

Qem··on Grok Claims It Was Briefly Suspended from X After Accusing Israel of Genocide
Archived version: https://web.archive.org/web/20250811224054/https://www.rolli...
Qem··on The demographic future of humanity: facts and consequences [pdf]
> There is no guarantee your children will take care of you

On the flip side, for those childless, it's completely guaranteed none will.

> One quarter of adult children estranged from a parent

That sounds like a 75% success rate.

Qem··on The demographic future of humanity: facts and consequences [pdf]
> For the poor, it will have no real impact.

It will likely bring back the problem of old age destitution as rule, not exception. It's a previously common scourge that never went completely away[1][2], but went into the sidelines by early-mid XX century, and is set to coming back with a vengeance, by the time current people in their 20s-30s reach old age. It hits the poor hard.

[1] https://www.marketwatch.com/story/successful-educated-but-no...

[2] https://citizenmatters.in/mumbai-abandoned-destitute-elderly...

Qem··on South Korea's military has shrunk by 20% in six years as male population drops
> That really matter for hand-to-hand combat

I'm not so sure. If you're shot or suffer other injury that affects mobility, it's really helpful to have some comrades around with enough upper-body strength to carry you somewhere where you can get help, or at least cover while waiting for it. Being able to carry a lot of equipment is also useful.

Qem··on South Korea's military has shrunk by 20% in six years as male population drops
> Korea has compulsory military service for men, but not for women

If they make it compulsory for women it probably will just crash fertility further. Unless they couple it with the possibility of exemption for mothers.

Qem··on South Korea's military has shrunk by 20% in six years as male population drops
> depending on rate of empowerment of women

People attribute it to empowerment of women, but I wonder if it's more correlation than causation. Women empowerment happened in the same time frame there was a large shift towards urbanization. The situation across the world before was like ~80% of people living in rural areas, and ~20% living in cities. Now those proportions are approximately flipped in many places. IIRC cities appear to be a net population sink for most of history, counting on an steady stream of people moving from the countryside each generation to replenish sub-replacement numbers. Raising children "free-ranging" is more straightforward in the countryside. In cities they demand a lot of micromanagement and resources from parents, because car-infested, cramped urban landscape is expensive and hostile to children. So perhaps the causation arrow flows from accelerated urbanization to both women empowerment and sub-replacement fertility rates, not necessarily from women empowerment to sub-replacement rates.

Qem··on Job growth has slowed sharply; the question is why
Short term, maybe, as you still have excess production capacity. Long term excess capacity get dismantled, business go bankrupt, scale is lost.
Qem··on Job growth has slowed sharply; the question is why
> How does increasing wealth inequality drive price increases?

When poor people receive money, they tend to put it to circulate in the economy, by spending it. When super-rich people receive money, it goes mostly to tax havens, removing it from circulation. Business lose scale, as there is less consumers, raising unitary prices.

Qem··on Eggs are off the hook–study reveals bacon's the real heart risk
Nowadays the villain is milk. Lots of influencers disparaging it. "No animal besides humans drink milk as adults, it must be wrecking your health!" they say. This is dumb. No animals besides humans cook food and chlorinate water. What am I supposed to do? Eat raw eggs and drink contaminated water?
Qem··on A candidate giant planet imaged in the habitable zone of α Cen A
> Based on the photometry and orbital properties, the planet candidate could have a temperature of 225 K, a radius of ≈1-1.1 RJup and a mass between 90-150 MEarth, consistent with RV limits.

Hope it has some interesting moons.

Qem··on Project Hyperion: Interstellar ship design competition
Reminds me of this: https://www.badspacecomics.com/post/rivers-end
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