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OpenCiv3: Open-source, cross-platform reimagining of Civilization III

https://openciv3.org/
443•klaussilveira•6h ago•107 comments

The Waymo World Model

https://waymo.com/blog/2026/02/the-waymo-world-model-a-new-frontier-for-autonomous-driving-simula...
787•xnx•11h ago•478 comments

Show HN: Look Ma, No Linux: Shell, App Installer, Vi, Cc on ESP32-S3 / BreezyBox

https://github.com/valdanylchuk/breezydemo
151•isitcontent•6h ago•15 comments

Monty: A minimal, secure Python interpreter written in Rust for use by AI

https://github.com/pydantic/monty
140•dmpetrov•6h ago•60 comments

How we made geo joins 400× faster with H3 indexes

https://floedb.ai/blog/how-we-made-geo-joins-400-faster-with-h3-indexes
16•matheusalmeida•1d ago•0 comments

Dark Alley Mathematics

https://blog.szczepan.org/blog/three-points/
46•quibono•4d ago•3 comments

A century of hair samples proves leaded gas ban worked

https://arstechnica.com/science/2026/02/a-century-of-hair-samples-proves-leaded-gas-ban-worked/
81•jnord•3d ago•6 comments

Show HN: I spent 4 years building a UI design tool with only the features I use

https://vecti.com
255•vecti•8h ago•120 comments

Show HN: If you lose your memory, how to regain access to your computer?

https://eljojo.github.io/rememory/
186•eljojo•9h ago•125 comments

Microsoft open-sources LiteBox, a security-focused library OS

https://github.com/microsoft/litebox
318•aktau•13h ago•155 comments

Sheldon Brown's Bicycle Technical Info

https://www.sheldonbrown.com/
315•ostacke•12h ago•85 comments

Hackers (1995) Animated Experience

https://hackers-1995.vercel.app/
402•todsacerdoti•14h ago•218 comments

An Update on Heroku

https://www.heroku.com/blog/an-update-on-heroku/
325•lstoll•12h ago•235 comments

PC Floppy Copy Protection: Vault Prolok

https://martypc.blogspot.com/2024/09/pc-floppy-copy-protection-vault-prolok.html
17•kmm•4d ago•1 comments

Show HN: R3forth, a ColorForth-inspired language with a tiny VM

https://github.com/phreda4/r3
50•phreda4•6h ago•8 comments

I spent 5 years in DevOps – Solutions engineering gave me what I was missing

https://infisical.com/blog/devops-to-solutions-engineering
110•vmatsiiako•11h ago•34 comments

How to effectively write quality code with AI

https://heidenstedt.org/posts/2026/how-to-effectively-write-quality-code-with-ai/
189•i5heu•9h ago•132 comments

Make Trust Irrelevant: A Gamer's Take on Agentic AI Safety

https://github.com/Deso-PK/make-trust-irrelevant
6•DesoPK•1h ago•2 comments

Learning from context is harder than we thought

https://hy.tencent.com/research/100025?langVersion=en
149•limoce•3d ago•79 comments

Understanding Neural Network, Visually

https://visualrambling.space/neural-network/
239•surprisetalk•3d ago•31 comments

I now assume that all ads on Apple news are scams

https://kirkville.com/i-now-assume-that-all-ads-on-apple-news-are-scams/
983•cdrnsf•15h ago•417 comments

FORTH? Really!?

https://rescrv.net/w/2026/02/06/associative
42•rescrv•14h ago•17 comments

I'm going to cure my girlfriend's brain tumor

https://andrewjrod.substack.com/p/im-going-to-cure-my-girlfriends-brain
55•ray__•3h ago•13 comments

Introducing the Developer Knowledge API and MCP Server

https://developers.googleblog.com/introducing-the-developer-knowledge-api-and-mcp-server/
20•gfortaine•4h ago•2 comments

Evaluating and mitigating the growing risk of LLM-discovered 0-days

https://red.anthropic.com/2026/zero-days/
36•lebovic•1d ago•11 comments

Female Asian Elephant Calf Born at the Smithsonian National Zoo

https://www.si.edu/newsdesk/releases/female-asian-elephant-calf-born-smithsonians-national-zoo-an...
5•gmays•1h ago•0 comments

Show HN: Smooth CLI – Token-efficient browser for AI agents

https://docs.smooth.sh/cli/overview
77•antves•1d ago•57 comments

Show HN: Slack CLI for Agents

https://github.com/stablyai/agent-slack
40•nwparker•1d ago•10 comments

The Oklahoma Architect Who Turned Kitsch into Art

https://www.bloomberg.com/news/features/2026-01-31/oklahoma-architect-bruce-goff-s-wild-home-desi...
20•MarlonPro•3d ago•4 comments

Evolution of car door handles over the decades

https://newatlas.com/automotive/evolution-car-door-handle/
40•andsoitis•3d ago•62 comments
Open in hackernews

The Logarithmic Time Perception Hypothesis

http://www.kafalas.com/Logtime.html
62•rzk•3mo ago

Comments

rzk•3mo ago
https://archive.ph/7Yskr
esafak•3mo ago
If nothing is going on in your life, it is as the article says. However, if you experience novel and memorable stimuli, good or bad, time dilates. Traumatic experiences are particularly memorable because the brain wants to make sure you learn your lesson. It is a consequence of the brain's compressive learning algorithm, discarding the familiar and making sense of the new.
downboots•3mo ago
More trauma, longer life. Got it. \s
stronglikedan•3mo ago
More trauma, longer perceived life. not\s (something to be said about quality over quantity tho)
kstrauser•3mo ago
I’m convinced you’re right. Consider how long your first road trip to a place feels, versus the 10th time you’ve taken that route. When you’re processing all new data, it stretches out.
munificent•3mo ago
Agreed completely. I don't think we perceive the passage of time at the macro scale. We perceive the acquisition of novel experiences and new memories.

I've had months of work I can barely remember, and three-day vacations that feel like a year's worth of memories.

jacquesm•3mo ago
I have the exact opposite. The first time seems to flash by, but the 10th time takes forever.
abirch•3mo ago
One benefit of this, is once you'd done something once, the other times kind of melt together.
holyknight•3mo ago
Yeah, this is a the answer. Our brain only remembers novelty, our firsts years and even decades are plagued by it. But after you are already 5 or 10 years onto your "adult" life you basically do exactly the same each day. 80% of what we do in our daily life as adults is not memorable at all and get completely ignored by our long-term perception. In short, it feels like the time flies because you did only 2 or 3 memorable things in the whole year.
quentindanjou•3mo ago
> Traumatic experiences are particularly memorable because the brain wants to make sure you learn your lesson.

Weird, I have always been told that when the brain is functioning "normaly" (outside of disorders/syndromes, such as PTSD) that it has a tendency to forget bad things, to help us get over traumatic experiences.

withinboredom•3mo ago
I don't think they mean literally traumatic, but more like a bad breakup, or falling out of a tree. You survive -- maybe barely -- but its no more traumatic than a scrape or a bump. I still remember the first "major" injury I have (from jumping off a the top of a car at 4 years old). Not like it was yesterday -- no PTSD there -- but it was the first time I scraped my knee. I'll probably never jump off a car again.
Qem•3mo ago
My hypothesis is a bit different. Instead of logarithimic time perception, informational time perception. Children have brains with high plasticity and huge new information acquisition (learning) rates. Those rates drop as plasticity decreases when one gets older. Those "bitrates" of new information flowing into long-term memory act as sand flowing through a hourglass. A fixed amount of sand represents a fixed amount of subjective time. When those rates drop, we feel time runs faster, because now the same amount of sand (subjective time, information) stretches over more clocktime.
munificent•3mo ago
I think you're onto something, but I don't think it has to do with plasticity, but novelty.

Consider the brain as a giant recording device with very good compression based recognizing patterns from previous data. So the first time you eat an apple, it stores a lot of data because it's a new experience. The next time, it stores something more like "like the last apple, but a little more tart".

I think our perception of time (at the macro scale) is roughly a perception of how much new data our compression-oriented brain is storing. It's the sensation of accumulated novelty.

kridsdale1•3mo ago
With this in mind, the length of one’s life is not chronological (by a clock) but the integral of the novel information they experience.

So a monotonous 60 year existence is a fraction of the perceived duration of 60 years of a wild and adventurous, constantly reading, learning new languages, making new deep human connections - existence.

squidhunter•3mo ago
I wonder how something like ayahuasca or dmt would impact this. People have described these substances as having a type of mental “reset” quality. If they do impact time perception, I’m assuming it’s only temporary…
R_D_Olivaw•3mo ago
While I can't speak to these substances, regarding the temporariness of it:

Irrespective of whether or not the effect, or lasting effects, dwindle and can thus be considered "temporary", there's something too be said about the act of the reset itself.

That is, whether or not the effects feel like they're fading, the memory of what it was like when it was new is still a massive data point and can be recalled.

In short, you can still remember that feeling of the reset and recall a time when your brain felt new and refreshed.

munificent•3mo ago
Right. Which means making the most of your life is only partially about longevity, but also about getting out there and doing new things.
mxkopy•3mo ago
Thats the same thing, no?

https://en.wikipedia.org/wiki/Entropy_(information_theory)?w...

kridsdale1•3mo ago
Well yes some of us do believe in the Shannon basis for Quantum Gravity.
IncreasePosts•3mo ago
I think everyone intuitively understands this too. If you spend the next 3 months sitting in your boring office job that you've done 1000 days before, those 3 months may disappear entirely from your memory. Compared to taking the next 3 months and traveling to some strange land far away from home, and I bet those 3 months will stick out in your mind until your dying days.
kridsdale1•3mo ago
Controversial take: isn’t this a strong point in favor of having as many romantic partners as possible during one’s life?
IncreasePosts•3mo ago
No? Because then the norm is just passing from one person to another.
Carlseymanh•3mo ago
It really does not work like that, you start mixing everything and everyone up in a depressing blob after a while. I can't even remember the names of people i thought I loved or at least cared about. Compared with my last five years in a serious, committed relationship, its a night and day difference. To the next five years, and the ten after that hopefully.
strackle•3mo ago
Which would imply that if an 80 year old from birth went out there and learnt new things and did new things every day, years would pass like a turtle, however hours and days would zoom by.
pmg101•3mo ago
I don't think it has anything to do with age but with the rate of new experiences.

Take a year off work to travel the world and you'll find your subjective sense of time passing slows right down.

Does it matter though? Does it matter how many experiences you collect? You can't take them with you. Better to develop relationships that can be a source of joy (I imagine. I have not done that).

PaulDavisThe1st•3mo ago
It may not matter in any objective sense, or even a subjective one.

But if you want your sense of time passing to slow down, increasing the rate of new experiences might be one way to get there.

bibimsz•3mo ago
if you want your sense of time passing to slow down, go sit in an empty silent room with nothing to do
PaulDavisThe1st•3mo ago
It's a great paradox. What you say is true, but it is also true that a period of life with more novel experiences will also appear to pass more slowly.
Legend2440•3mo ago
I mean, you can’t take the relationships with you either.

Do whatever makes you happy.

kridsdale1•3mo ago
You can though. Pharohs were interred with their living concubines.
holyknight•3mo ago
If you give me back 3 month of vacations in summer as when I was a kid, they will also feel long.
pinkmuffinere•3mo ago
Even 3 weeks feels long now
stronglikedan•3mo ago
I'd love to know how long a 3 week vacation feels! One day, maybe...
pinkmuffinere•3mo ago
It’s easy if you get fired or quit! lol
weinzierl•3mo ago
Is there anyone else who never felt like time is passing faster as they age?

Sure, I sometimes think: "Wow, another year passed so fast.", but I distinctly remember the same feeling from when I was a child. School years seem to have flown past me the same as calender years do now.