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magicalhippo

18,448 karma · joined August 21, 2017

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magicalhippo··on Foldable Flight: The Best Paper Airplanes
My dad worked overtime in the evening a fair bit. He'd often bring me when I was a young teen. The building was several stories tall with a huge open central core, just a flight of stairs on one end.

I'd go to the top floor, take a bunch of paper from the printer room and fold planes, and send them out into the central space. Go back, tweak the design or try something new, launch again.

Don't think I came up with any good designs, but I had a lot of fun trying various ideas.

magicalhippo··on Quadrillion-parameter transformers and how to train them
Yep that's the one. Was in a bit of a hurry to dig up sources.
magicalhippo··on Quadrillion-parameter transformers and how to train them
I recall that nature documentary showing how kangaroo fetuses climb up and into mom's pouch. They've been in a womb for the human equivalent of 7 weeks, yet immediately outside they know they must climb up, how to crawl through the fur, and how to identify when they've reached their destination.

I'm also reminded of that car AI using a neural net with a single shared weight, where the topology of the neural graph was what made the AI work.

How stuff is connected is what our DNA is about, so seems obvious the topology must encode behavior and such and it's not all learned.

magicalhippo··on Goodbye Claude, Hello Pi
Sonnet 5.5 feels like a cocky rookie. It's capable, but it often makes mistakes and especially poor assumptions, and when I point it out it just goes "yeah I did that wrong". Opus is much better at judging assumptions, makes less poor assumptions and mistakes. And when I point them out it takes it to heart and makes sure it guards against such a mistake in the future.

Sonnet is great for simple work, such as subagents running a program and summarizing the output. Opus is just that much better at the more challenging work I find.

You can probably get Sonnet to reach the same goal, but Opus needs much less hand-holding and overwatch.

magicalhippo··on Implementing GPT-2 in CSS
Wow... I've seen hacks before but this is up there. Bravo!
magicalhippo··on Tesla winds down Cybertruck production after years of poor sales in few markets
I mean as much as I love thd idea of actually doing something bonkers, the lack of sales seemed inevitable to most I assume, so that should come as no surprise. Should have stayed a concept car.
magicalhippo··on Nvidia store pulls RTX 5080 following RTX 5090 removal, prices rise to 2.2X MSRP
> I'm reminded of the "beginning of the end" for 3dfx

The big difference now is that the fundamental shift in component pricing is making it hard for competitors to bring something with a significantly better bang for your buck factor. I strongly doubt we'd see these moves made by NVIDIA if component prices were "normal", I mean even PCBs are affected[1].

[1]: https://www.tomshardware.com/pc-components/ai-demand-trigger...

magicalhippo··on BYD sold more EVs last month than the US did all quarter
Dealer where I bought my Renault Megane e-Tech mentioned one of the Chinese brands they also sell had a headlight unit that cost 60k NOK (about $6k) to replace, plus labor...

So yeah, better have good insurance and hope it doesn't just die on you I suppose.

magicalhippo··on Temperature soars at Swedish grocery store freezers, one store blames hackers
Seems to be happening in Belgium too: https://news.ycombinator.com/item?id=50334672
magicalhippo··on Another supermarket hit with freezer attack
Seems it's happening in Sweden too: https://news.ycombinator.com/item?id=50334774
magicalhippo··on Lenovo's 'encrypted' fingerprint USB is just an unencrypted SD card in a case
You didn't build your computer from discrete transistors[1]?

[1]: https://www.megaprocessor.com/index.html

magicalhippo··on When electric cars were for women
By right kind of road I assume you mean track.

I thought the old (new) Top Gear episodes with celebrities in a reasonably priced car vs F1 drivers in the same car was very fascinating. The F1 drivers managing to wring that much more out of the little cheap car.

magicalhippo··on Azure's Weakest Link – Five Full Cross-Tenant Compromises
For us a big part is that they have data centers in our country. It makes for improved latency and also makes a lot of our customers sleep better (justifiably so or not).

Amazon doesn't and regardless nobody feels comfortable using Google, who knows when they'll discontinue a product we would rely on.

So not a lot left to choose from.

magicalhippo··on New 'Circadian' Subtype of Depression Affecting 1 in 4 Patients
Similar, though I just stopped with caffeine after 8 pm, went to bed when I got tired and limited any bedtime phone use strictly to a Sudoku app (the mental effort made me sleepy).

I had been a night owl since a teen, and yet here I was waking up naturally at around 7 am feeling refreshed. I realized a lot of what had kept me up at night was the freedom and silence. Once I moved on my own, there was nothing to escape so to speak. So I just stopped the caffeine and stopped avoiding bed.

magicalhippo··on The Great Schlep: Israelis Are Flying Back to Vote
> Sometimes it's not about "the numbers" -- it's about sending a message.

Oh absolutely, and I'd say that should be it for most elections. If there's a strong voter turnout in general it's a constant reminder that the people care.

My point comes in addition to that.

magicalhippo··on Rockchip RK3588s Secure BootROM arbitrary code execution with highest privileges
An attacker with physical access to a device containing RK3588s SoC can easily modify the next-stage loader data on-the-fly using a low-cost SD-card or SPI NOR/NAND or EMMC emulator.

So yeah, not a huge surprise you can pwn a device you can solder stuff to.

magicalhippo··on Attention Is Not What You Need (2025)
Well they're quite explicit about that:

In summary, our results suggest that what we fundamentally need for strong sequence modeling is not attention as such, but a principled way for representations to move on the manifolds they inhabit. Grassmann flows provide one concrete instantiation of this idea, and we hope they will encourage further exploration of geometric alternatives to attention in the design of neural architectures.

They also note they kept the proposed model very simple to make it easier to understand (and presumably train):

In this paper we deliberately restricted ourselves to a minimal design—k = 2, no explicit global invariants—to keep the core idea clear. But we view “global invariants + local Grassmann flow” as a promising direction for future work on geometry-aware reasoning.

magicalhippo··on Attention Is Not What You Need (2025)
Fair point. If only the paper had a link to the code.

I found this[1] repo which tries to reproduce it, and its accompanying blog post[2] uses (z_t, z_t - delta), without further mention.

Another repo[3] trying to reproduce it also does the reverse from what I can see, so (current, past).

Interestingly the first repo got underwhelming results, while the second repo matched the paper roughly. Not sure if it's related to the Claude-usage or not in the first, though it notes a lot of details were left out of the paper which is true.

[1]: https://github.com/Infatoshi/grassmann-flows/

[2]: https://github.com/Infatoshi/grassmann-flows/blob/main/blog....

[3]: https://github.com/kanenorman/grassmann

magicalhippo··on The Great Schlep: Israelis Are Flying Back to Vote
And because you can't know when a pivotal voter is needed.

Here in Oslo, the local elections some years ago was decided by six votes out of about 300k votes (~500k eligible), between a left-leaning majority and a right-leaning majority.

It's often close but not that close.

magicalhippo··on Attention Is Not What You Need (2025)
That's not how I read it.

For each position t and offset Δ∈ such that t+Δ≤L, we form a pair (z_t,z_t+Δ).

For a given t, this produces up to m pairs:

(z_t,z_t+Δ_1),(z_t,z_t+Δ_2),….

We treat these as local neighborhoods at multiple scales. Note that the pairing is causal: we only pair t with positions strictly to its right (future), consistent with left-to-right language modeling.

So z_t is a token in the input, and z_t+Δ is some later token. Guess they could have flipped that around to (z_t-Δ, z_t) with t+Δ>=0.

magicalhippo··on A 10-year-old CNN outperforms frontier LLMs for skin cancer diagnosis
What we've been trying Jev for is interpreting things like short product descriptions provided by customers, and determine which of the natural language categories fits best.

The list of categories are provided by the government and can change several times a year, and the product descriptions are almost random (think the various titles of AliExpress listings of essentially the same product).

What kind of dedicated classifier would be better? Genuinely curious.

magicalhippo··on Five Qwen3.8-27B models match Fable 5 Using GVS5H Harness
Did you try once on a bad day?

I experienced a regression some days ago, where Claude Code with Opus 5.5 wouldn't progress as expected, getting stuck on steps. So I had to repeatedly ask it what the status was and to proceed with X, and so on.

But that was just one day, the days before and after it has done lots of fairly autonomous work, including spinning off multiple subagents to run conformance tests which take 30-50 mins and work on other stuff in the meantime, then acting on the results autonomously.

magicalhippo··on Trump Says He Has 'Right' to Run for Third Term: 'They Cheated Us'
You kinda reinforced the point of GP. The Constitution has no direct bearing on Trump being a squatter in the White House or not, it's the people around him that determines that.

The only factor the Constitution plays is that the people around him have more or less decided to try to follow what the Constitution says. If they decide to not to that, well, then what the Constitution says doesn't matter.

magicalhippo··on Hertzon: Open-Source 3D Full-Wave FEM Solver
Just adding that FEM is general, it can be used for other kinds of simulations than just electromagnetic waves. For example it can be used for determining strain and stress in building elements, fluid flows, heat transfer and more.
magicalhippo··on US annual budget gap hits nearly $2T, largest in 5 years
Well yes of course, but he's rich so that's not an issue he needs to worry about.
magicalhippo··on US annual budget gap hits nearly $2T, largest in 5 years
He is doing something about it, he's going to ensure inflation makes the debt really tiny. At least he's been pretty vocal about that.
magicalhippo··on Things to know when you get cancer
Based on multiple experiences in family, including my dad, I say: if treatment works, ask explicitly where your cancer type is likely to spread to, and be very mindful of changes in those areas.

If so, let the docs know what you had and that it typically spreads to the area you're now experiencing a change in, if they're not already considering it.

magicalhippo··on A recent doubling of global warming rate signals a 1.5°C breach by 2028
Nah, 1.5C was a political goal. The one where you aim for 1.5C and pat yourself on the back if it ends up below 4C.

That's why they lowered it to 1.5C from the 2.0C they initially talked so much about, otherwise they'd be happy if it ended up below 6C. And that would be really bad.

magicalhippo··on Intel D270 GPU AI Accelerator–Up to 480 GB LPDDR5X
Sure, but if you use that memory for the weights of a single model, it'll be ~5x slower.
magicalhippo··on RJ Mitte has died
Leonard Cohen comes to mind as well[1]:

Cohen discovered that he had unknowingly paid a credit card bill of Lynch's for $75,000, and that most of the money in his accounts was gone, including money from his retirement accounts and charitable trust funds. This had begun as early as 1996, when Lynch started selling Cohen's music publishing rights, despite the fact that Cohen had no financial incentive to do so.

https://en.wikipedia.org/wiki/Leonard_Cohen#Lawsuits_and_fin...

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