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Learn Your Way: Reimagining Textbooks with Generative AI

https://research.google/blog/learn-your-way-reimagining-textbooks-with-generative-ai/
82•FromTheArchives•1h ago•29 comments

Nvidia buys $5B in Intel

https://www.tomshardware.com/pc-components/cpus/nvidia-and-intel-announce-jointly-developed-intel...
632•stycznik•8h ago•380 comments

This map is not upside down

https://www.maps.com/this-map-is-not-upside-down/
51•aagha•1h ago•66 comments

Configuration files are user interfaces

https://ochagavia.nl/blog/configuration-files-are-user-interfaces/
73•todsacerdoti•2h ago•35 comments

Launch HN: Cactus (YC S25) – AI inference on smartphones

https://github.com/cactus-compute/cactus
56•HenryNdubuaku•3h ago•25 comments

Flipper Zero Geiger Counter

https://kasiin.top/blog/2025-08-04-flipper_zero_geiger_counter_module/
160•wgx•6h ago•45 comments

The Last Days of the Managerial Class

https://eyeofthesquid.com/the-last-days-of-the-managerial-class-5c95bd74ee60
11•TinyBig•42m ago•2 comments

TernFS – An exabyte scale, multi-region distributed filesystem

https://www.xtxmarkets.com/tech/2025-ternfs/
145•rostayob•4h ago•48 comments

When Knowing Someone at Meta Is the Only Way to Break Out of "Content Jail"

https://www.eff.org/pages/when-knowing-someone-meta-only-way-break-out-content-jail
59•01-_-•1h ago•16 comments

Luau – Fast, small, safe, gradually typed scripting language derived from Lua

https://luau.org/
114•andsoitis•5h ago•43 comments

KDE is now my favorite desktop

https://kokada.dev/blog/kde-is-now-my-favorite-desktop/
564•todsacerdoti•7h ago•449 comments

American Prairie unlocks another 70k acres in Montana

https://earthhope.substack.com/p/victory-for-public-access-american
201•mooreds•3h ago•127 comments

Aaron Levie: Startups win in the AI era [video]

https://www.youtube.com/watch?v=uqc_vt95GJg
28•sandslash•5h ago•9 comments

The quality of AI-assisted software depends on unit of work management

https://blog.nilenso.com/blog/2025/09/15/ai-unit-of-work/
116•mogambo1•6h ago•69 comments

OpenTelemetry Collector: What It Is, When You Need It, and When You Don't

https://oneuptime.com/blog/post/2025-09-18-what-is-opentelemetry-collector-and-why-use-one/view
15•ndhandala•2h ago•2 comments

OneDev – Self-hosted Git server with CI/CD, Kanban, and packages

https://onedev.io/
40•jcbhmr•3h ago•16 comments

PostgreSQL Maintenance Without Superuser

https://boringsql.com/posts/postgresql-predefined-roles/
11•radimm•3d ago•0 comments

Chrome's New AI Features

https://blog.google/products/chrome/new-ai-features-for-chrome/
105•HieronymusBosch•2h ago•59 comments

Slack has raised our charges by $195k per year

https://skyfall.dev/posts/slack
2639•JustSkyfall•17h ago•1134 comments

Midcentury North American Restaurant Placemats

https://casualarchivist.substack.com/p/order-up
137•NaOH•2d ago•40 comments

Grief gets an expiration date, just like us

https://bessstillman.substack.com/p/oh-fuck-youre-still-sad
275•LaurenSerino•5h ago•127 comments

Show HN: One prompt generates an app with its own database

https://www.manyminiapps.com/
16•stopachka•3h ago•17 comments

CERN Animal Shelter for Computer Mice (2011)

https://computer-animal-shelter.web.cern.ch/index.shtml
295•EbNar•12h ago•39 comments

Automatic differentiation can be incorrect

https://www.stochasticlifestyle.com/the-numerical-analysis-of-differentiable-simulation-automatic...
59•abetusk•5h ago•20 comments

The Day the Linter Broke My Code

https://blog.fillmore-labs.com/posts/errors-2/
15•eik•3d ago•3 comments

Show HN: The text disappears when you screenshot it

https://unscreenshottable.vercel.app/?text=Hello
500•zikero•17h ago•175 comments

CircuitHub (YC W12) Is Hiring Operations Research Engineers (UK/Remote)

https://www.ycombinator.com/companies/circuithub/jobs/UM1QSjZ-operations-research-engineer
1•seddona•9h ago

Rereading books

https://maxgirkins.com/writings/on-rereading
38•mgirkins•4d ago•23 comments

This website has no class

https://aaadaaam.com/notes/no-class/
186•robin_reala•10h ago•78 comments

Pnpm has a new setting to stave off supply chain attacks

https://pnpm.io/blog/releases/10.16
180•ivanb•12h ago•110 comments
Open in hackernews

This map is not upside down

https://www.maps.com/this-map-is-not-upside-down/
50•aagha•1h ago

Comments

hyperhello•1h ago
> Psychologically, we tend to view things nearer the top as ‘good’ and those lower as ‘bad.’

This, of course, is the point of the article. It was so predictable that it made me wonder: who is telling me that top is good and lower is bad? The articles themselves.

hidroto•1h ago
https://en.wikipedia.org/wiki/Global_North_and_Global_South
alabhyajindal•1h ago
First time seeing this and it feels so offensive. I'm somewhat okay with the term developed and developing countries, though not too much [1]. But this just feels discriminatory.

1. https://en.wikipedia.org/wiki/Factfulness

micromacrofoot•3m ago
it is discriminatory, though that wasn't the original intention
davidczech•1h ago
I'd bet a lot of this behavior is heavily correlated with how we generally read top to bottom, which is in itself, probably an arbitrary decision made by ancient text writers.
vman81•1h ago
Writing top to bottom, and even left to right has/had advantages for mostly right-handed writers to avoid moving your hand over and smudging previously written text.
mitthrowaway2•1h ago
How would top-to-bottom benefit right-handed writers any more than left-handed ones?
hyperhello•24m ago
And why would that make the top better than the bottom anyway? That's like saying the meal is worse after you finish it.
InitialLastName•1h ago
Writing top-to-bottom has advantages for all writers whose eyes are above their hands. The bit of the writing surface that's blocked by your hand hasn't been written on yet.
ks2048•1h ago
I’m not sure it’s arbitrary.

For one, starting at the top and ending at the bottom is natural progress of things because of gravity.

I’m not sure if that means anything, but down-to-up seems very unnatural (of coure I can’t ignore my cultural biases). Is there any writing systems like that?

y-curious•1h ago
They link this[1] article, which I don't plan to read. I, too, rolled my eyes.

1: https://journals.sagepub.com/doi/abs/10.1177/194855061140104...

dvt•1h ago
I read it and their methodology is embarassingly bad, especially for the kind of study that can be done en masse so easily (heck, a Twitter poll would be more useful). N=28, where all were undergraduates, and 24 were women. Could easily be influenced by the college campus, location, student housing, etc. It's literally the kind of project you'd do in middle school for a science fair.

Absolutely terrible study. Full paper is here: https://www.researchgate.net/publication/258189192_Spatial_M...

alwa•1h ago
I mean, and.. with the map South-up, all the stuff is crammed down at the bottom now, no?

Aren’t most of the people and land and things in the North part? A casual Google [0] suggests 88% of the humans, for example?

I don’t understand the “good” and “bad” thing, but it does make sense to me that you scan something “earlier” or “later” in casting your eye across a mass of stuff.

If we read from top to bottom… doesn't it make sense to put the part where the stuff is earlier in order than the part with mainly oceans?

It makes slightly more sense to me to argue about which continental masses should go on the left or the right of the map, e.g. [1]. Although compositionally, if you put the Eurasian continent on the left side (“first” for left-to-right readers), doesn’t the massive Pacific exaggerate the impression of a discontinuity or a vast gap between geographical clusters of humans?

[0] https://brilliantmaps.com/human-hemisphere/#:~:text=88%25%20...

[1] https://www.mapresources.com/products/world-digital-vector-r...

bobsmooth•1h ago
>I don’t understand the “good” and “bad” thing

The author has an inferiority complex.

schoen•1h ago
At one point a character in Eco's Foucault's Pendulum says "archetypes don't exist, the body exists" and then gives some sexual and reproductive examples, followed by

> And high is better than low, because if you have your head down, the blood goes to your brain, because feet stink and hair doesn’t stink as much, because it’s better to climb a tree and pick fruit than end up underground, food for worms, and because you rarely hurt yourself hitting something above—you really have to be in an attic—while you often hurt yourself falling. That’s why up is angelic and down devilish.

You could also argue that because of gravity and potential energy, up is usually the result of purposive action and effort, while down is often the result of accident or neglect ("you often hurt yourself falling"). That potential energy (and wide-open space) can also be used for maneuvering, so if two people or other creatures are fighting, one who is higher is generally at an advantage compared to one who is lower or lying on the ground. The lower party has less energy available to direct toward the opponent, and usually less room to move, being more constrained by the presence of the ground.

uniposterz•1h ago
Is there a way to purchase this map for printing so Robert Simmon gets compensated?
cronelius•1h ago
I mean you could just Venmo him
QQQQQQQQQQQQQM•1h ago
Recently I had been looking for a specific map of a local trail system and found a map store near me that might have it, and had seen this exact map in the store. Crazy to see it here a couple days later!

I believe you should be able to get it shipped wherever. https://www.mapcenter.com/store/p/upside-down-world-by-rober...

soanvig•1h ago
Print regular map in a design you like and hang it upside down. It's literally that. Or if you want to be strict you can use "flip" function in image editing tool. You can compensate me for saving your money
InitialLastName•58m ago
To be fair, it's nice to have the typography rearranged to work upside down.
skellington•1h ago
The weirdest thing about this to me is I was just thinking about the arbitrariness of current North being up the other day and then this article pops up here.

They're reading our freaking brains!

quuxplusone•1h ago
Reading the "Divine Comedy" led me to a realization (or at least a shower thought) the other day: It makes perfect sense for someone living in the northern hemisphere to think of "north" as "up." Why? Because when you look up, you see the stars, all rotating around a fixed point at the very top of the heavens. (In our current epoch, this fixed point is close to the star Polaris.) If you journey on foot in the direction of this fixed, highest point — toward Polaris — you'll find that you are traveling due north.

So the conventional association between Upward and Northward is very much grounded in physical reality (for dwellers in the northern hemisphere).

axiolite•39m ago
I doubt that is a thought on anyone's mind... I find people orient themselves by the direction their house / street faces, to a lesser extent the position of the sun, and north at the top is a completely arbitrary thing imposed on us.

As evidence, see GPS navigation, which shows "forward" at the top.

rdtsc•1h ago
This is a great map, they should show it alongside the typical one when teaching geography. I'll show this to my kids later, see what they think and ask them to find some countries on it.

A similar change of perspective "trick" is knowing that when we look up at the stars, it's not really "up", it can be "down", too. Imagine being suspended head down, feet stuck to the ground looking at the space below, with billions of light years worth of almost nothing out there. A bit terrifying, I suppose, so maybe don't think too much about it :-)

eckmLJE•1h ago
"The enemy's gate is down"!
disillusioned•1h ago
In practical terms, though, 90% of the world's population lives in the northern hemisphere and the northern hemisphere contains ~65% of the earth's land mass, so it's not entirely without merit that we orient the map that way.
rivetfasten•1h ago
The West Wing has such a good clip about this:

https://youtu.be/vVX-PrBRtTY?si=05KQjltJ8fVsqMDw

gundmc•1h ago
One of my favorite episodes! This immediately came to mind. I was due for a rewatch, thanks for linking.
jordigh•1h ago
Thought of this old Mafalda strip, haha.

https://external-content.duckduckgo.com/iu/?u=https%3A%2F%2F...

latexr•58m ago
Translation:

Panel 1: But Libertad¹, you’re hanging it upside down.

Panel 2: Upside down in relation to what? Earth is in space, and space has neither up nor down.

Panel 3: Saying the northern hemisphere is up is a psychological trick from those at the top, so that those who believe we are below continue to believe we are below. And the worst part is that if we keep believing we’re below, we’ll continue to be below! But starting today, that’s over!

Panel 4, top: Where were you, Mafalda?

Panel 4, bottom: I don’t know, but something just came to an end.

¹ It’s her name: https://mafalda.fandom.com/es/wiki/Libertad

loloquwowndueo•1h ago
Fun fact: if you rotate a regular map (north on top) counterclockwise, you’ll notice the American continent looks like a duck.

Even more fun fact: once you’ve seen this, you cannot unsee it. It’s a duck.

shadowgovt•1h ago
Is this map projection making Russia look small an artifact of the projection (i.e. we expand the land in the north more than the south in this projection in general) or an optical illusion?

Russia looks small flipped on its head and I can't quite figure out why.

throw-the-towel•1h ago
I don't think Russia looks small on this map, it's just not as blown-out as on Mercator maps. When I was growing up in Russia, the map I had in my room was a similar projection -- except with the North up, of course -- and Russia was about the same size on it.
zahlman•53m ago
> I don't think Russia looks small on this map, it's just not as blown-out as on Mercator maps.

I think that GP is accustomed to Mercator maps and is thus more surprised by it.

(I'm not really sure why this is a thing. My elementary school classrooms in the late 80s showed a variety of projections, and globes.)

zahlman•1h ago
> (i.e. we expand the land in the north more than the south

Yes. This is a consequence of the fact that the "land in the north" is, on average, further north (of the Equator) than the "land in the south" is south (of the Equator).

The southernmost point on the South American mainland, per Wikipedia, is Cape Froward, Chile, at about 54°S. For perspective, some cities between 53°N and 54°N include Edmonton, Alberta, Canada; Hamburg, Germany; and Dublin, Ireland. Similarly, the capital of New Zealand is about in line with the capital of Albania, and the capital of South Africa is about in line with the capital of Qatar.

jauntywundrkind•1h ago
I know the planet has poles, but it surprises me somehow that basically every map I've ever seen respects the poles as top bottom.

The earth is a sphere and we could just as well pick any pode/anti-pode we want when drawing.

pge•1h ago
For navigation, having the poles at top and bottom is really the only way to do it. Lining up positions of constant noon sun angle along a horizontal line (i.e. latitude line) makes the paper map correspond nicely to the navigational information available.
emulatedmedia•1h ago
As someone from the Southern Hemisphere, the article's point falls flat. There's more land area in the top so it makes it easier to look at it
boringg•1h ago
You lose a lot of the details of the northern hemisphere when its compressed downwards in that map.
hughes•1h ago
That seems to be due to the pseudocylindrical projection, not the rotation of the map.
therealmarv•1h ago
Somebody know where to get a higher resolution of that map?
buzzy_hacker•1h ago
I was taught in high school that during the Cold War, there were maps with the US centered and USSR divided on either side to imply American unity in the face of opposition.

Example: https://ebay.us/m/tN1UfJ

crazygringo•1h ago
The maps were common, but there was nothing anti-USSR about them, and they go way back before the Cold War.

It's long been practice for maps to be centered on the country/continent they're produced in. American world maps centered on the Americas, British world maps centered on Greenwich, Chinese world maps centered on East Asia.

These days we've mostly standardized on the more "neutral" choice of having the edges in the middle of the Pacific because that minimizes the land getting split up, but there are also Asian maps that split in the middle of the Atlantic, since Greenland's population is low.

zenmac•1h ago
Wow look at Australia upside down it looks strikingly resembles USA!
sivers•1h ago
It's also a wonderful metaphor for how the opposite can also be true.

Japanese addresses that name the blocks, not the streets: https://sive.rs/jadr

West African music that uses the "1" as the end of the phrase instead of the start: https://sive.rs/fela

“Whatever you can rightly say about India, the opposite is also true”, Joan Robinson

https://www.ted.com/talks/derek_sivers_weird_or_just_differe...

throw-the-towel•1h ago
Also in the address department: Europe numbers houses roughly sequentially along the whole street, while the Americas (generally) assign house numbers based on the distance to the beginning of the block.

And BTW, in the old towns of Sweden and Finland blocks do have names!

bluGill•1h ago
Sometimes. I know of places in america where numbers are sequential. I know of other places where they a sequential but increase by five.
throw-the-towel•1h ago
Could you share some examples please? I'm not doubting you, just want to look at some maps.
evandrofisico•56m ago
In Brasilia, Brazil only main avenues are named and all addresses are also by block, just like in Japan.
xnx•1h ago
90% of the world's population lives in the northern hemisphere[1].

It would be a deliberately weird design choice to make a globe (which is almost always viewed from above) with the northern hemisphere n bottom.

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

euroderf•1h ago
The traditional (folk? premodern?) Finnish view of the world places Finland at the bottom.
mikebannister•1h ago
My uncle had a south-up map of the US on his wall when I was growing up. I always thought it was funny and slightly profound.
yongjik•1h ago
Another fun arbitrary thing is which meridian you decide to cut, because the earth is round.

If you do an image search for, say, "world atlas," you'll see all the maps have cut the Pacific in half, so the West Pacific is at the right edge and the East Pacific is at the left edge of the map.

Now, if you search for, say, "세계전도", then you'll see that most maps have cut the Atlantic in half, because otherwise kids (for whom those atlases are intended) would see their own hometown shoved all the way to the end of the map.

Beijinger•1h ago
A similar map was published by the Brazilian government:

https://www.gmexconsulting.com/cms/the-world-from-a-brazilia...

daedrdev•1h ago
This map feels confusing because Canada, Russia, Greenland and antarctica are the same color, I feel like they should not be the same and antarctica should not be a country color
legitster•1h ago
Also, I was quite old by the time I learned that "Oriental" literally just means "direction of the sunrise". So to "orient" would specifically mean looking East.

Before compasses all indicated North, "the North" was associated with cold and evil, the south was associated with warmth and prosperity, and the East was considered neutral when establishing bearings.

schoen•59m ago
> Also, I was quite old by the time I learned that "Oriental" literally just means "direction of the sunrise".

Even more literally "of the rising" ("occidental" meaning "of the falling"). The sun is of course implied here, but the Latin verbs orior and occido more generally indicate rising and falling motions of anyone and anything.

rilindo•1h ago
I can see Marley and Paradis!
numpad0•1h ago
My Kerbal brained thinking: shouldn't it be east up with KSP at center?
patternMachine•1h ago
The moralizing that always accompanies (not) upside down maps is so tedious. It's a genuinely interesting example of how something can look so wrong and yet not be wrong at all. To try to extend that "wrong" feeling to some kind of moral failure on the viewers part is just silly. You (or society) are not a bad or prejudiced person for thinking this way, it's just that nearly all maps produced have chosen a different arbitrary orientation.
globular-toast•1h ago
Arguments about map projections are tiring. If you want to understand the whole planet, use a globe. Most people use maps via screens these days and there is no problem with projection or orientation. Most apps will let you orient the map how you like or according to your current bearing etc. and use a local projection. Can't we just stop using these whole world projections completely?
cyberlimerence•1h ago
I love stuff like this. I encourage everyone to check out 'Méditerranée Sans Frontières' map. [1][2]

[1] http://mediterraneesansfrontieres.org/babel4.html [2] https://amroali.com/2020/12/what-a-sideway-map-of-the-medite...

gausswho•44m ago
Intriguing. I wonder if an Arabic reader looks more prominently at the right side (Europe), the way an English speaker looks more prominently at the left side (Africa).

Would be interesting to see a world map designed with latitude vertically instead. If the top were the Pacific, your eyes would first appraise East Asia. If the top were the Atlantic, North America.

interroboink•55m ago
Obligatory "there's an xkcd for everything": https://xkcd.com/1500/ (:
dbl000•52m ago
Relatedly there's a Map Men video on why north is up. [0] I don't buy the whole top is 'good' and lower is 'bad'. I think the bias is just a lot of the groups that made maps were located north(ish) and traveling roughly southward which made it a convenient orientation, especially during the age of sail.

[0]https://www.youtube.com/watch?v=B14Gtm2Z_70

gaborcselle•35m ago
This article feels AI-generated