HNHacker News
TopNewBestAskShowJobs

JBits

259 karma · joined November 19, 2021

submissionscomments
JBits··on Artemis II crew take “spectacular” image of Earth
You can't claim to have superior knowledge if you admit you're wrong.
JBits··on Minecraft Java is switching from OpenGL to Vulkan
> Once this happens, players will be able to switch between OpenGL rendering and Vulkan rendering

I think this means you'll be able to continue using Minecraft with OpenGL.

JBits··on Zed editor switching graphics lib from blade to wgpu
What would be the best way to use Vulkan 1.4 in Rust today? Using the C headers with bindgen or writing my own vk.xml generator?
JBits··on Adobe Animate (formerly Flash) will be discontinued on March 1st
Clip Studio Paint seems very popular for animation. You could also consider Aseprite for pixel art animation.
JBits··on Spherical Snake
Really fun! Developing my intuition for a sphere as I played was a nice experience. As other commenters have mentioned, the game ramps up a bit too slowly. Perhaps it would worth adding more than one food item.
JBits··on Python numbers every programmer should know
One of the reasons I'm really excited about JAX is that I hope it will allow me to write fast Python code without worrying about these details.
JBits··on Unity's Mono problem: C# code runs slower than it should
Has the talent moved to anywhere in particular?
JBits··on Microsoft increases Office 365 and Microsoft 365 license prices
People still appear to use Flash these days by downloading an old version and getting a license key from Reddit/YouTube/etc.
JBits··on Microsoft increases Office 365 and Microsoft 365 license prices
Can confirm as someone who was using pre-subscription Office to write/read files while everyone else at work was using the 365 version. Now that I'm using 365 too, I do however appreciate the ability to do shared live editing in the office programs.
JBits··on When did people favor composition over inheritance?
If CLU only supported composition, was the Liskov substitution principle still applicable to CLU?
JBits··on The maths you need to start understanding LLMs
For me, it's the very basics of general relativity which made the distinction between the cotangent and tangents space click. Optimisation on Riemannian manifolds might give an opportunity to apply more interesting tensor calculus with a non-trivial metric.
JBits··on The Little Book of Linear Algebra
A good use of linear algebra that I'm working with at the moment is the use of splines as a basis for real (vector) functions. After obtaining the matrix/vector representations you can solve for the spline coefficients (and then plot them).

Linear transforms (such as rotations and displacements) in GPU graphics.

Fourier series in signal processing.

JPEG compression.

Obtaining the best fit element in a vector space of curves given data or other constraints.

Understanding autodiff in JAX.

The mathematical definition of a tensor helps develop intuition for manipulating arrays/tensors in array libraries.

Transition matrices of a Markov chain.

PageRank.

JBits··on Undisclosed financial conflicts of interest in DSM-5 (2024)
At least you're working with Rust now.

As someone with zero knowledge of psychology, I'm biased against it. Partly because of my vague impression that psychology tries to fit people to models, rather than viewing models as limited approximations.

For a while I've thought it would be nice to know what results the field of psychology actually has that are trusted. Was there anything at all in the taught content which you liked? I didn't realise the DSM-V was that bad. If research on trans people can be cherry-picked, then does that mean that some reliable research exists?

JBits··on Double-slit experiment holds up when stripped to its quantum essentials
My impression about reality is the opposite. The quantum world makes perfect sense while it's the emergence of the classical world which is unfathomable. The crazy "pop into existence" part is still incomprehensible, so I guess it's essentially the same.
JBits··on Hierarchical Reasoning Model
I don't see how that changes anything. By this logic, there's no need for CoT reasoning at all, as a single pass should be sufficient. I don't see how that proves that CoT increases capabilities.
JBits··on Hierarchical Reasoning Model
I would assuming that training a LLM would be unfeasible for a small research lab, so isn't tackling small problems like this unavoidable? Given that current LLMs have clear limitations, I can't think of anything better than developing beter architectures on small test cases, then a company can try scaling it later.
JBits··on Hierarchical Reasoning Model
> CoT models can, in principle, solve _any_ complex task.

What is the justification for this? Is there a mathematical proof? To me, CoT seems like a hack to work around the severe limitations of current LLMs.

JBits··on The Rise of Whatever
Some people just like em dashes—myself included. You can find em dashes in articles written by the author before LLMs became a thing.
JBits··on Hilbert's sixth problem: derivation of fluid equations via Boltzmann's theory
The issue is that many of her videos argue that funding for particle physics should instead go into foundations and interpretations of quantum mechanics, specifically research completely identical to what she works on.

This is not helped by the fact that she pushes an interpretation of quantum mechanics viewed as fringe at best. Her takes on modern physics seem typically disingenuous or biased.

JBits··on Quantum Computation Lecture Notes (2022)
There are multiple competing quantum computing hardwares, so you haven't given all of them the same length of time.
JBits··on Inigo Quilez: computer graphics, mathematics, shaders, fractals, demoscene
What sort of tech/techniques did wondermoss use? Was it generating polygons?
JBits··on Matt Godbolt sold me on Rust by showing me C++
Looking forward to the API when it's stabilised. Have there been any updates on the progress of allocators of this general area of Rust over the past year?
JBits··on Fujitsu and RIKEN develop world-leading 256-qubit sup quantum computer
It matters, but it's not functionally equivalent between different architectures.

Since noone has many qubits, typically physical qubits are compared as opposed to virtual qubits (the error corrected ones).

The other key figures of merit are the 1-qubit and 2-qubit gate fidelities (basically the success rates). The 2-qubit gate is typically more difficult and has a lower fidelity, so people often compare qubits by looking only at the 2-qubit gate fidelity. Every 9 added to the 2-qubit gate fidelity is expected to roughly decrease the ratio of physical to virtual qubits by an order of magnitude.

In architectures where qubits are fixed in place and can only talk to their nearest neighbours, moving information around requires swap gates which are made up of the elementary 1 and 2-qubit gates. Some architectures have mobile qubits and all-to-all connectivity, so their proponents hope to avoid swap gates, considerably reducing the number of required 2-qubit gates required to run an algorithm, thus resulting in less errors to deal with.

Some companies, particularly ones on younger architectures, but perhaps with much better gate fidelities, argue that their scheme is better by virtue of being more "scalable" (having more potential in future).

It is expected that in the future, the overall clock speed of the quantum computer will matter, as the circuits we ultimately want to run are expected to be massively long. Since we're far away from the point where this matters, clock speed is uncommonly brought up.

In general, different architectures have different advantages. With different proponents having different beliefs of what matters, it was once described to me as each architecture having their own religion.

TL;DR: the two key stats are number of qubits and 2-qubit gate fidelity.

JBits··on Blender releases their Oscar winning version tool
With examples ranging from Avatar the Last Airbender, to Castlevania, to Monty Oum (who also completely eschewed storyboards), I can't help but that reducing the over reliance on storyboards and focusing on the animation instead is a recurring theme among unusually successful animations/animators.

Flow's having an impact on animators seems great!

JBits··on Welcome to Ladybird, a truly independent web browser
I believe they're migrating to Swift instead of Jaht.
JBits··on OpenAI says it has evidence DeepSeek used its model to train competitor
What is the evidence that DeepSeek used OpenAI to train their model? Isn't this claim directly benefitting OpenAI as they can argue that any superior model requires their model?
JBits··on Why Northern England is poor
There is less immigration to North England.
JBits··on Programming in Lua (first edition) (2003)
It's the only edition which is provided for free. This edition uses Lua 5.0, which is very similar to 5.1 which is still very popular as it's targeted by LuaJIT. The changes between 5.1 and 5.2 seem small as well.
JBits··on UK bans daytime TV ads for cereals, muffins and burgers
I'm a bit confused as I thought muesli was healthy.
JBits··on CuPy: NumPy and SciPy for GPU
What did you need the eigenvalues for? I wouldn've guessed exact diagonalization but in that case you would need the eigenvectors.
← PreviousPage 2 of 5Next →