HNHacker News
TopNewBestAskShowJobs

Zacharias030

278 karma · joined June 18, 2019

submissionscomments
Zacharias030··on Transit rewards
Caltrain rides allow riders to be productive during the ride and generate income taxes in a way that cars do not.
Zacharias030··on Transit rewards
Additionally, the other poster failed to mention that the unit economics for the marginal rider are much more favorable.
Zacharias030··on AI Chip Architectures
always?
Zacharias030··on DeepMind's WeatherNext model achieves breakthrough forecasting cyclones
I'm interested in understanding wheater prediction models because accurate wind forecasts make a big difference to my personal life (sports).

Is there a good overview to learn about the current models, which all just seem like cryptic acronyms to me? in apps like Windy etc. WRF, TRRM, IK-HRRR-3km, ECMWF-9km,...

I understand by now that small grid cells are better for local prediction and that thermic winds are mostly missing from them all.

Zacharias030··on The Religion of Speed
Agree exactly!

If every use of AI was like this, I perhaps wouldn't have this slight allergic reaction to it, but as it stands, this voice and rhythm has become associated with bad lazy grifting writing.

Zacharias030··on The Religion of Speed
Ironic that parts of the article feel so AI written.

load-bearing this load-bearing that

Zacharias030··on Ex-GitHub CEO launches a new developer platform for AI agents
Parent comment has the rhythm of an AI comment. Caught myself not realizing it until you mentioned it. Seems like I am more in tune with LLM slop on twitter, which is usually much worse. But on second sight it's clear and it also shows the comment as having no stance, and very generic.

@dang I would welcome a small secondary button that one can vote on to community-driven mark a comment as AI, just so we know.

Zacharias030··on VisualJJ – Jujutsu in Visual Studio Code
do you use it with git worktrees? or how do you handle multiple claudes?
Zacharias030··on VisualJJ – Jujutsu in Visual Studio Code
Not working on it (yet), but I wish the jj <-> github story was a little more ergonomic.

Additionally, I am really missing support for stacked diffs, ie, easily pushing a number of commits into one PR on github each such that they all show their incremental diff.

ezyang's gh stack was pretty useful, if a little bit fragile [0] and graphite.dev is also very nice, but paid software with a strong VC based motivation to become everyone's everything instead of a nice focused tool.

[0] https://github.com/ezyang/ghstack

I'm also not super happy with the default 3-way merge editor, but often cannot use vscode or other GUIs.

Zacharias030··on Mattermost restricted access to old messages after 10000 limit is reached
I'll have a look into what the transfer story from mattermost->element looks like.
Zacharias030··on How AI labs are solving the power problem
Thank you for pointing to these details!
Zacharias030··on How AI labs are solving the power problem
This stance strikes me as questionable, to use the first hunch that comes to mind to seed doubt in a topic that is researched and reported by multiple fairly reputable sources and multiple people on the ground.
Zacharias030··on Scaffolding to Superhuman: How Curriculum Learning Solved 2048 and Tetris
I'm gonna go out on a limb and say that this is LLM written slop that is badly edited by a human. Factually correct but the awful writing remains.
Zacharias030··on Show HN: Z80-μLM, a 'Conversational AI' That Fits in 40KB
how so? sound like you are running Kimi K2 / GLM? What agents do you give it and how do you handle web search and computer use well?
Zacharias030··on Mattermost restricted access to old messages after 10000 limit is reached
Thank you xethos, this has been exactly the kind of opinion and experience report that I've been looking for.

the one thing I really want beyond persistent over whatsapp is threads. I hope matrix has a similarly trivial app/web/pc story as mattermost has, because the other users are not necessarily able to handle anything more complex than "download an app and sign in".

Zacharias030··on Maybe the default settings are too high
Skimmed through it; mostly reading the paragraphs above each picture. The irony of which is not lost on me :)

Really enjoyed the part talking about Tolkien. It reminds me of my own LOTR experience: I finished the trilogy in three consecutive summers in the hilly countryside of Italy near Rome. The first summer I made it through the fellowship of the ring with a lot of patience and trying for the slower moving parts. The summer after that I started over and read book 1 and 2, and in year three I felt I was finally in sync with the pace of the book and enjoyed reading through book 1, 2, and 3 in a few weeks.

Zacharias030··on Mattermost restricted access to old messages after 10000 limit is reached
I recently switched a bunch of friends from a project-oriented whatsapp chat to self-hosted mattermost, because I wanted permanent storage for messages and attachments, and threads, and did not want to pay slack in perpetuity.

I feel that this idea is now in jeopardy, if I understand the 10k message history is the limit correctly.

And there I thought I had a solution to slowly bring over project channels, family related things etc. that was as reliable as "my linux box will be reachable on the public internet" and I am willing to manage that it does.

Seems I was wrong, but I don't know which other software has better future proofing.

Zacharias030··on Mattermost restricted access to old messages after 10000 limit is reached
I recently switched a bunch of friends from a project-oriented whatsapp chat to self-hosted mattermost, because I wanted permanent storage for messages and attachments, and threads, and did not want to pay slack in perpetuity.

I feel that this idea is now in jeopardy, if I understand the 10k message history is the limit correctly.

And there I thought I had a solution to slowly bring over project channels, family related things etc. that was as reliable as "my linux box will be reachable on the public internet" and I am willing to manage that it does.

Seems I was wrong, but I don't know which other software has better future proofing.

Zacharias030··on Mattermost restricted access to old messages after 10000 limit is reached
Merry Christmas! This is why I like hackernews.
Zacharias030··on Mattermost restricted access to old messages after 10000 limit is reached
almost seems like there is now too much money in software. the old times felt like computer science was mostly a science.
Zacharias030··on Mattermost restricted access to old messages after 10000 limit is reached
can someone clarify the situation that self-hosted free (as in beer) community mattermosts are/will be in?
Zacharias030··on Fabrice Bellard Releases MicroQuickJS
I think features of the language can make it much easier (read: possible) for the compiler to recognize when a function is tail call optimizable. Not every recursion will be, so it matters greatly what the actual program is.
Zacharias030··on The architecture of “not bad”: Decoding the Chinese source code of the void
ok but Germans also use not bad as their highest praise and are from the west etc.
Zacharias030··on Think in math, write in code (2019)
The people I know who „think in math“ don’t think in the syntax of the written notation, including myself.
Zacharias030··on Largest cargo sailboat completes first Atlantic crossing
I thought (and think) that the teaclipper‘s square sail rigs wouldn’t be considered state of the art for any course the ship might sail.
Zacharias030··on Kimi Linear: An Expressive, Efficient Attention Architecture
Transformers try to give you capabilities by doing two things interleaved (in layers) multiple times:

- apply learned knowledge from its parameters to every part of the input representation („tokenized“, ie, chunkified text).

- apply mixing of the input representation with other parts of itself. This is called „attention“ for historical reasons. The original attention computes mixing of (roughly) every token (say N) with every other (N). Thus we pay a compute cost relative to N squared.

The attention cost therefore grows quickly in terms of compute and memory requirements when the input / conversation becomes long (or may even contain documents).

It is a very active field of research to reduce the quadratic part to something cheaper, but so far this has been rather difficult, because as you readily see this means that you have to give up mixing every part of the input with every other.

Most of the time mixing token representations close to each other is more important than those that are far apart, but not always. That’s why there are many attempts now to do away with most of the quadratic attention layers but keeping some.

What to do during mixing when you give up all-to-all attention is the big research question because many approaches seem to behave well only under some conditions and we haven’t established something as good and versatile as all-to-all attention.

If you forgo all-to-all you also open up so many options (eg. all-to-something followed by something-to-all as a pattern, where something serves as a sort of memory or state that summarizes all inputs at once. You can imagine that summarizing all inputs well is a lossy abstraction though, etc.)

Zacharias030··on A worker fell into a nuclear reactor pool
50C is terribly hot for a swim.

Hot spring baths usually top out around 42-43C

Zacharias030··on The Cancer Imaging Archive (TCIA)
This is a great resource for datasets for medical imaging with AI and surprisingly complete in the areas that I searched.
Zacharias030··on Andrej Karpathy – It will take a decade to work through the issues with agents
fair point, I appreciate AI researcher intuition about AI much more than CEO hunch boldly stated but not even firm on the terminology.
Zacharias030··on Andrej Karpathy – It will take a decade to work through the issues with agents
With all due respect, what does it say about us that „famous researcher voices his speculative opinion“ is an instant top 1 on hackernews?
Page 1 of 6Next →