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Solarpunk is happening in Africa

https://climatedrift.substack.com/p/why-solarpunk-is-already-happening
355•JoiDegn•3h ago•174 comments

Dillo, a multi-platform graphical web browser

https://github.com/dillo-browser/dillo
174•nazgulsenpai•4h ago•64 comments

ChatGPT terms disallow its use in providing legal and medical advice to others

https://www.ctvnews.ca/sci-tech/article/openai-updates-policies-so-chatgpt-wont-provide-medical-o...
154•randycupertino•4h ago•139 comments

The state of SIMD in Rust in 2025

https://shnatsel.medium.com/the-state-of-simd-in-rust-in-2025-32c263e5f53d
114•ashvardanian•4h ago•51 comments

New gel restores dental enamel and could revolutionise tooth repair

https://www.nottingham.ac.uk/news/new-gel-restores-dental-enamel-and-could-revolutionise-tooth-re...
225•CGMthrowaway•3h ago•101 comments

Ruby and Its Neighbors: Smalltalk

https://noelrappin.com/blog/2025/11/ruby-and-its-neighbors-smalltalk/
153•jrochkind1•7h ago•83 comments

Firefox profiles: Private, focused spaces for all the ways you browse

https://blog.mozilla.org/en/firefox/profile-management/
61•darkwater•1w ago•18 comments

The shadows lurking in the equations

https://gods.art/articles/equation_shadows.html
239•calebm•8h ago•78 comments

Why aren't smart people happier?

https://www.theseedsofscience.pub/p/why-arent-smart-people-happier
113•zdw•6h ago•202 comments

A Lost IBM PC/at Model? Analyzing a Newfound Old Bios

https://int10h.org/blog/2025/11/lost-ibm-at-model-bios-analysis/
31•TMWNN•2h ago•3 comments

I want a good parallel language [video]

https://www.youtube.com/watch?v=0-eViUyPwso
43•raphlinus•1d ago•27 comments

Timing Wheels

https://pncnmnp.github.io/blogs/timing-wheels.html
9•pncnmnp•4d ago•0 comments

Carice TC2 – A non-digital electric car

https://www.caricecars.com/
167•RubenvanE•8h ago•120 comments

An eBPF Loophole: Using XDP for Egress Traffic

https://loopholelabs.io/blog/xdp-for-egress-traffic
186•loopholelabs•1d ago•66 comments

NY smartphone ban has made lunch loud again

https://gothamist.com/news/ny-smartphone-ban-has-made-lunch-loud-again
160•hrldcpr•9h ago•111 comments

A P2P Vision for QUIC (2024)

https://seemann.io/posts/2024-10-26---p2p-quic/
79•mooreds•8h ago•37 comments

Absurd Workflows: Durable Execution with Just Postgres

https://lucumr.pocoo.org/2025/11/3/absurd-workflows/
69•ingve•2d ago•14 comments

Norway reviews cybersecurity after remote-access feature found in Chinese buses

https://scandasia.com/norway-reviews-cybersecurity-after-hidden-remote-access-feature-found-in-ch...
256•dredmorbius•6h ago•154 comments

Internet Archive's legal fights are over, but its founder mourns what was lost

https://arstechnica.com/tech-policy/2025/11/the-internet-archive-survived-major-copyright-losses-...
101•thinkcontext•4h ago•59 comments

Learning from failure to tackle hard problems

https://blog.ml.cmu.edu/2025/10/27/learning-from-failure-to-tackle-extremely-hard-problems/
85•djoldman•6d ago•22 comments

Vacuum bricked after user blocks data collection – user mods it to run anyway

https://www.tomshardware.com/tech-industry/big-tech/manufacturer-issues-remote-kill-command-to-nu...
107•toomanyrichies•4d ago•22 comments

I was right about dishwasher pods and now I can prove it [video]

https://www.youtube.com/watch?v=DAX2_mPr9W8
208•hnaccount_rng•1d ago•79 comments

Apple App Store frontend source code archive

https://github.com/rxliuli/apps.apple.com
158•redbell•2d ago•26 comments

SPy: An interpreter and compiler for a fast statically typed variant of Python

https://antocuni.eu/2025/10/29/inside-spy-part-1-motivations-and-goals/
213•og_kalu•6d ago•102 comments

Optimism associated with exceptional longevity (2019)

https://www.pnas.org/doi/10.1073/pnas.1900712116
67•RickJWagner•9h ago•62 comments

Making MLS More Decentralized

https://blog.phnx.im/making-mls-more-decentralized/
24•cityroler•1w ago•10 comments

Founder in Residence at Woz (San Francisco)

1•bcollins34•11h ago

Wafer-Scale AI Compute: A System Software Perspective

https://www.sigops.org/2025/wafer-scale-ai-compute-a-system-software-perspective/
15•matt_d•1w ago•1 comments

3D Geological Models in Minecraft

https://www.bgs.ac.uk/discovering-geology/maps-and-resources/maps/minecraft-3d-geological-models/
11•michaefe•3h ago•4 comments

The grim truth behind the Pied Piper (2020)

https://www.bbc.com/travel/article/20200902-the-grim-truth-behind-the-pied-piper
92•Anon84•10h ago•88 comments
Open in hackernews

Fiber reduces overall mortality by 23%

https://www.empirical.health/blog/dietary-fiber-reduces-all-cause-morality/
61•brandonb•3h ago

Comments

jad9m•2h ago
am I the only one who thought this article was about fibre internet (from the title)?
canadiantim•2h ago
yes
jayd16•2h ago
No but I was hoping it was. Then insurance would pay for the roll out.
re-thc•2h ago
Back to the Dotcom bubble instead of AI?
sleepytimetea•2h ago
And here I am, stuck with only cable modem connectivity.
m463•2h ago
that's unfortunate since fiber has better bandwidth, congestion control and large packet support.
gpi•2h ago
Digestion control
Noaidi•2h ago
For who? The Inuit? The Chinese? Europeans? People with my ice age genetics? (Nope)

I despise studies that do not take genetics into account. Fiber made my cholesterol worse! The only thing that lowered my LDL and riased my HDL was a seafood only diet. Fiber flares my IBD, most likely from my NOD2 genetics[1][2].

[1] https://www.nature.com/articles/35079107

[2] https://www.mdpi.com/2072-6643/14/22/4775

"IBD patients show that microbiota dysbiosis and diet, especially dietary fiber, can modulate its composition. These patients are more at risk of energy protein malnutrition than the general population and are deficient in micronutrients"

thisislife2•2h ago
If you don't mind telling us, what fiber-rich food did you consume?
Noaidi•2h ago
Pretty much none, and I poop like clockwork now. Maybe some sourdough crisp breads every now and then, and some white rice. But I avoid most plant foods but frop seaweed and mushrooms (they contain Fucose (not fructose!) which helps my gut becasue I am a FUT2 non-secretor [1] as well.

In my late 20s and 30's I was going to the bathroom (urgently) at least twice a day if not more. My gut was bloated and my mental health was much much worse.

[1] https://www.frontiersin.org/journals/microbiology/articles/1...

aeturnum•2h ago
I mean, if you click on the first link you will open the paper they are summarizing[1]. It's a meta analysis of 64 studies, so you could certainly go through the studies and look at each population.

However, the actual answer is that all population studies are only gross generalizations that may not apply to you. They are often quite useful because the odds are generally good that they do apply...but it's never certain. Even if you are a member of the studied population your specific circumstances may overwhelm your populations norms.

[1] https://pubmed.ncbi.nlm.nih.gov/38011755/

Noaidi•2h ago
Yeah, but I am at the tail end of these statistical curves and my life was absolute hell and doctors (but one) did nothing for me. And they kept telling me to eat fiber cause my cholesterol was so high and HDL was too low (30)!

If the meta analysis showed population differences, why did the article not bring it up? This is what is wrong with nutrition research, then never account fro genetics despite the huge about of evidence that it is extremely importnat.

The truth is that fiber does not reduce mortality for everyone by 23%. I would rather not be guessing with science and health. I lived through that and it took me years to get out of it.

jjtheblunt•2h ago
> Fiber made my cholesterol worse!

Interesting: what is the evidence for causality there? Might you have antibodies/allergies involved, for instance?

lanfeust6•2h ago
Nice anecdote, don't believe it for a second.
loloquwowndueo•2h ago
Oh, way to bury the lede.

> You can’t improve what you don’t measure. If you’re trying to get more fiber—or to optimize other heart health nutrients like saturated fat, sodium, and potassium—Empirical Health is designed to make tracking very easy.

You can’t improve what you can’t measure and our product coincidentally helps you measure this.

NotMichaelBay•2h ago
That's good that they "buried the lede", isn't it? Better than the product being mentioned early and often throughout the article.
WrongOnInternet•2h ago
Or the price of said product ($190)
brandonb•2h ago
FYI: $190 is the price for the comprehensive health panel which includes a blood test and video visit with a doctor.

You can track nutrition for free within the iPhone/Android apps.

brandonb•2h ago
(OP) Yep--this is my philosophy. Obviously I'd love it if everybody used our product to improve their heart health, but I think it's better to write stuff that's informative and if people genuinely have the problem, then they can try us out.
BigTTYGothGF•2h ago
No, because then you'd have wasted time reading what turned out to be ad copy.
NotMichaelBay•1h ago
You're implying that the article has no value because its purpose is to attract readers to ultimately make a purchase. But if you're trying to attract readers, arguably the best way to do that is to provide something of value to them.

If the goal is to attract readers without providing any value at all, it's extremely easy to do that nowadays with AI. And luckily it's just as easy to identify low-effort articles written by AI.

1121redblackgo•2h ago
Olipop ad?
brandonb•2h ago
(OP here) - no affiliation with Olipop. But we've tried all the fiber supplements around the office, and we found Olipop is a pretty palatable option compared to, say, psyllium husk (which forms a gel when combined with water).
slabity•2h ago
Looks more like an ad for your app though... Which for some reason collects tons of data unrelated to health, like messages, location data, and photos/videos/files?
brandonb•2h ago
Photos are used to track nutrition -- you choose each photo to upload within the app.

Location is only used, in context, to help find healthy meals near you. (You can use the app with or without enabling this location-based feature; if you don't use it, then we don't ask for location.)

Where are you seeing messages? We don't track messages, so this is probably a mistake in our metadata.

slabity•2h ago
https://play.google.com/store/apps/datasafety?id=com.empiric...

Sorry for being pessimistic, it's just whenever I see a health related app I immediately look at the data collected and data shared sections and get concerned. Especially if it's being shared with insurance companies.

Quick edit: That "messages" part might be only in-app ones. Google does not word that well in the summary.

brandonb•2h ago
I see -- yeah, the Android metadata says "in-app messages". That refers to features where you can message support or a doctor within the app. We don't attempt to read your text messages or anything like that.

Your data isn't shared with insurance companies.

erulabs•2h ago
Worth noting that Olipop's fiber comes from inulin, which can be purchased as a supplement and dissolves in water nicely. I'm very curious why inulin is such an unknown product - its a polysaccharide, so it tastes mildly sweet despite having minimal to no impact on glucose levels.

You'd think we'd have been supplementing almost all sugary foods/drinks with it for years, since it's a cheap and healthy sweetener.

jimkri•2h ago
Super interesting to read! I have noticed a huge benefit from just adding Metamucil to my diet. The following lines from the article really resonate.

>Insoluble fibers have fecal-bulking characteristics that may promote regular bowel movements and avoid constipation.

>"Specifically, soluble fiber binds to bile acids in the intestine"

I have started to take Metamucil more frequently because I was taking an algae supplement, Spirulina & Chlorella, and it was moving through me so fast because I noticed I had no bulk from a low fiber diet. It made a huge improvement in bulking and slowed my bowel movements.

I also noticed before adding the fiber that I just would feel acidic, rude, or short-tempered in a different way, and my stomach was really acidic. Adding the fiber really did help, and it's cool to see articles and research backing it up.

wil421•2h ago
Did you have heartburn? I’m curious if adding Metamucil would help with that after hearing you feel less acidic.
InMice•2h ago
I think it can help for some. You have to be careful which brands, CR did tests for lead. yerba prima organic was the best
jimkri•2h ago
I do, and when I actively and consistently take Metamucil or a psyllium husk, it has helped. I recently stopped because I ran out and forgot to buy more, and I have noticed the heartburn again.
m463•2h ago
I kind of wonder what the best form of added fiber should be.

The thing about metamucil is that it has either added sugar or artificial sweeteners. the main ingredient is psyllium husk.

I like benefiber better - no taste, just sprinkle on food. But I don't know how wheat dextrin compares to psyllium husk (or other fibers)

A nurse I talked to takes psyllium husk by itself, and I wonder if that is better than metamucil.

chrisweekly•2h ago
The 3-in-1 capsules are no sugar, just 2 ingredients: psyllium husk, gelatin. Swallow w/ water, taste is not a factor.
jaapz•2h ago
Why not just start eating foods with more fiber in them?
AaronAPU•1h ago
I had chronic digestive issues which almost completely disappeared after taking Metamucil.

Then, about a year later changed my diet and started tracking macros. Was able to stop taking Metamucil after balancing them properly.

I’d consider Metamucil a bandaid, it is easier to supplement than rehaul your entire diet. But the latter is better in the long run for sure.

m463•57m ago
> started tracking macros

what does that mean?

dpark•2h ago
Benefiber is wheat dextrin. It doesn’t have most of the properties that you want from a fiber supplement. It gets digested by gut microbes so it doesn’t provide bulk. It doesn’t gel so it doesn’t help with cholesterol or blood sugar.

Near as I can tell Benefiber is basically a placebo. People feel good for adding “fiber” to their diet but it has none of the effects of psyllium husk or oat fiber.

Psyllium husk by itself (power, not capsules) is utterly disgusting by the way. Tastes like dirt. You can hide it in protein shakes or similar but I personally struggle to get it down with just water.

m463•1h ago
hmm... searching I find:

“Gel-forming psyllium is good for both softening hard stools and firming up loose stools. It is effective in preventing or relieving constipation. Research shows viscous fibers like psyllium or the fiber in oats can have some impact on improving blood sugar control and lowering blood cholesterol levels."

“Fermentable wheat dextrin does not form a gel with liquid, so it is not helpful for constipation or diarrhea. Nor can it help lower cholesterol or control blood sugar. It does, however, serve as a prebiotic, providing nourishment to the gut microbiota. When microbiota ferment fiber, they release gas, so wheat dextrin may cause bloating and flatulence."

https://www.nutritionletter.tufts.edu/gi-health/psyllium-vs-...

dpark•1h ago
Right. So it doesn’t do any of the things generally associated with fiber, except giving you gas.
jimkri•2h ago
This is a really good callout. I think trying different types helps to see what works best for you and to fit into your lifestyle.

I also have plain psyllium husk, and I avoided it because I liked the sugar of the Metamucil. But I have been focusing on lowering my sugar, so I'm switching to the plain psyllium husk, and it's just as easy to drink; it was really a little mental game of how it would taste, haha.

thisislife2•2h ago
I kind of wonder what the best form of added fiber should be.

There are plenty of foods rich in fiber that you don't need to consider supplements. The article itself mentions - Foods high in soluble fiber including avocados, whole grains, chickpeas, apples, lentils, broccoli, brussels sprouts, certain seeds, and artichokes. Most fruits and vegetables also have varying amount of fiber, as does some variety of rice, millets and wheat (that are common in some Asian diets). See https://www.cancer.org/cancer/survivorship/coping/nutrition/... for more.

m463•1h ago
Have you ever actually compared the amount of fiber foods actually have?

I've tried it and it is hard.

Let's say you need 38g of fiber per day and you need to make up half of it.

You could eat 6 cups of brussel sprouts, or sprinkle 6 packets of benefiber on your food as you eat throughout the day.

Also, a lot of natural fiber in quantity has some unpleasant gastrointestinal side effects.

I'm not saying it is impossible, but it can be quite challenging to get all your fiber from natural sources in our society.

twentyfiveoh1•38m ago
inulin? beneficial if your gut microbiome is functioning well. There have been some recent studies that found dietary fiber is protective of the liver as well by preventing fructose fat deposits from building up. It also doesn't taste too bad. A tiny little bit of something semi-sweet.
tanseydavid•2h ago
I avoided Metamucil for a long time, because "only old people use that."

Contempt without prior investigation and denial of my mortality is the true reason.

But once I started taking it I was sorely disappointed in myself that I did not start at least 10 years sooner.

Perhaps un-branded supplemental fiber is unburdened by the old people connotation? I probably still would have resisted.

jimkri•2h ago
I thought the same thing! My mom used it when I was younger, and I always passed on trying it because of that random memory and association.

I just got past the Metamucil to plain psyllium husk. I felt the plain version was going to taste bad, but it was just plain and not sugary. It's funny the concepts that can lead to certain small behaviors.

pfdietz•2h ago
I've tried various fiber supplements, mostly for avoiding constipation, but what I found really worked is bran flakes.
panarky•2h ago
Does eating fiber by itself reduce mortality?

Or do healthy and wealthy people with active lifestyles and excellent healthcare happen to also eat more fiber?

e584•2h ago
Oh wow, I'm sure the authors of the meta study never considered that...
brandonb•2h ago
This is honestly a limitation of nearly all nutrition research -- it's based on observational data.

Part of the reason we expect fiber to reduce mortality, rather than simply being a marker of other factors correlated with mortality, is that we can identify physiological mechanisms. For example, for cardiovascular mortality, fiber reduces LDL cholesterol / ApoB which lowers heart attack and stroke risk.

tanseydavid•2h ago
Ask your doctor.
thisislife2•2h ago
I don't know about my physical health, but mentally I feel more calm / content when I eat fiber rich food. I partly understand that this is because fiber rich food ensures slower release of sugar, from the food you eat into your blood, preventing the sudden spike and fall you get in sugar levels from food with low fiber (most retail snacks and junk food). I can also assert that bowel movement does feel "good" with fiber in your diet. And you feel satiated faster, and for a longer period of time, with it.
crdrost•22m ago
Yep! Lustig has a book, Metabolical, that goes into kind of a simple explanation of the underlying mechanism here, and it's roughly like this: fiber-rich foods contain a combination of soluble and insoluble fiber, the insoluble fiber basically forms a sort of "net" of chunks and strings and such that you can't digest, and the soluble fiber forms a "gel" which gets stuck in the net and traps other foods. This gel is infused with various enzymes to break down foods in the duodenum, and then passes to the first and second half of the "zig-zag" parts of the small intestine -- the jejunum and the ileum.

The combination of fibers then leads to a given packet of calories traveling further down the jejunum as it gets absorbed, which makes more of the bacteria living along the length of the intestine happy with you, as well as protecting from blood glucose spikes that come with concomitant "crashes".

hinkley•2h ago
It was only about five years ago I realized that pectin is a soluble fiber. My entire childhood is a lie. All that lovely jam and jelly was a delivery mechanism.
stabbles•2h ago
Funny how the first suggestion is supplements, the second whole foods.
qoez•2h ago
Just eat lots of beans and lentils. No need for an app or 'fiber gummies'
ratelimitsteve•2h ago
anything leafy as well, though those won't have the protein boost of legumes
InMice•2h ago
I like to pair those with rice so their amino acids compliment each other.
cassepipe•2h ago
Lettuce because I am lazy
ratelimitsteve•2h ago
what do I need to get my mortality up to 123%? I'm deadmaxxing
kristianp•2h ago
I've started eating more avocado for its good oils, turns out it is high fibre too. My cholesterol readings have improved marginally, HDL slightly higher, LDL slightly lower.
endoblast•2h ago
Relatedly, microdosing with lactulose (which is very cheap) has a probiotic effect.

https://pmc.ncbi.nlm.nih.gov/articles/PMC8353095/

cassepipe•2h ago
I personally macrodose on lettuce. Real cheap and easy to source.

Some of the most beautiful turds ever made, some would even the most beautiful

pinkmuffinere•2h ago
> You can’t improve what you don’t measure

I hate the way this saying is commonly used today. I think a literal interpretation is untrue, but many people feel that a literal interpretation is true. For instance, humans get better at speaking whatever language they are surrounded with, even though that is not being actively measured by some metric. It is probably being measured by some implicit cycle in the human brain, but that is not the kind of explicit measurement that people would demand based on this saying. Some other examples that you can improve without an explicit measurement:

- Camera stability (you can usually "see" it immediately, without an engineering metric)

- Large changes in customer satisfaction (for fine tuning you probably need a metric, but for large changes, it will be obvious)

- Kindness

I'm not saying that measurement is purposeless. Just that it is not always necessary. Not everything needs to be measured. Also, why do generally smart people buy this platitude, when others will obviously not be taken as law? I don't see engineering orgs living by "closed mouths don't get fed", or "tidy desk, tidy mind", or "if momma ain't happy ain't nobody happy". But somehow "You can't improve what you don't measure" became law.

I realize this is only tangential. I guess I've been saving this rant for a while.

arp242•1h ago
I agree with what you're saying; in the most extreme scenario you end up with the McNamara fallacy, and it's bizarrely common on e.g. HN. But I also think the platitude is appropriate in this case – I probably eat a decent amount of fibre, but is it enough? I don't really know. I'd need to measure it (and it's very possible I could be vastly under- or overestimating some things about my diet).
pinkmuffinere•32m ago
Actually I don't even think the platitude is appropriate in this case, although perhaps this is due to differences in acceptable performance. Do you really need to measure the health impact directly on your body to be satisfied that you are doing something right? I think you can take studies that say "X mg of fiber a day improves outcomes", eat slightly more than X mg of fiber, and likely get 90% of the benefit as compared to the "ideal" amount of fiber, all without a personalized measuremnet. Even if you did have a measurement, there would be confounding factors like "how much did you exercise?" / "how stressed were you?" / "is your body 'just getting old'?"
delichon•2h ago
The meta-analysis is of epidemiological data, which shows association, but since there is no intervention, cannot show causation and does not claim to. It does not distinguish an effect of fiber from healthy user bias.

https://pmc.ncbi.nlm.nih.gov/articles/PMC3077477/

brandonb•2h ago
Unfortunately, this is a limitation of nearly all nutritional studies.

Partly we use mechanistic evidence to separate cause from effect--that's part of why the article goes into detail about, e.g., how soluble fiber binds to bile in the liver. If there's an association between A and B, and a known physiological mechanism where A causes C which causes B, it makes it more likely that ultimately A is the cause of B.

delichon•2h ago
It's a limitation of all epidemiological studies. These are a great way to target more expensive randomized controlled trials that are also more invasive by definition. Nutrition science has lots of those and needs more.

In an N=1 intervention study, I too found fiber to be health supporting, but that wasn't randomized or controlled.

sarchertech•2h ago
It doesn’t, but we do have plausible mechanisms to explain the effect.

Fiber lowers LDL cholesterol, slows digestion, makes you feel full longer, and helps with regularity, so increasing your fiber intake is probably worth it anyway.

fellowniusmonk•2h ago
Literally grind up 2 tbps of Hulled Barley, take 2 mins to boil it in a microwave with a bunch of water, drink your barley water and call it a day.

Humans effectively co-evolved with Barley drink, it's insane we try all this other stuff.

The benefits of barley and beta glucan are well established.

People don't seem to appreciate that it aids in more thorough digestion while protecting your digestive tract.

Eat roughage and greens all you want, but barley in a spice grinder is 100% the base layer for everything else and it takes 3 mins a day to microwave and drink.

Incidentally this also helps regulate the water content in your colon, so hydration curves improve as well.

Bulking with greens without laying down a soluble fiber base is why people get the salad shooter expierence, the greens don't stay in your digestive tract long enough.

All these lesser grains have to have ad campaigns and health fads, barley is the goat and always in demand and so people over look it.

dizlexic•1h ago
To be slightly obtuse, I've never understood these studies because overall mortality is 100%.
crdrost•39m ago
Yes, here "overall" is being used as a synonym for "from all causes" not "over the full length of your life," and there's this frustrating thing for those of us with physics educations where people frequently leave off a unit of time: so like if it's a 5 year study, and your all-cause mortality is lower by a factor of 20% over those 5 years, that means 80% survived and you should compute the fifth root 0.8^(1/5) to find that 95.6% survived per year on this account, and then you can say "reduces mortality by 4.4% per year," and that sounds much more reasonable.

This happens all over the place. You're just supposed to know in investment that a price-to-earnings ratio is measured in years, or people will say "the Buffett indicator is 200%" not "the Buffett indicator is 2 years."