Hacker News: rajman187

New comment by rajman187 in "The road to ACID transactions in Cassandra 6"

rajman187 — Fri, 21 Aug 2026 23:00:09 +0000

i'd say 99% of usecases will be served fine with Postgres, or a managed instance via AWS

New comment by rajman187 in "How I estimate work"

rajman187 — Sat, 24 Jan 2026 19:40:51 +0000

i think it's worth revisiting this in a short while because, by and large, how the engineering craft has been for the last 40+ years is no longer the correct paradigm. it takes Claude Code a few moments to put together an entire proof of concept. engineers, especially experienced ones, will be less likely to produce (and hence be performance-calibrated on) code as output but rather orchestration and productionization of [a fleet of] agents. how do you guide an llm to produce exactly what is needed, based on your understanding of constraints, available libraries, various systems and APIs, etc. to accomplish some business or research goal?

in that sense, estimation should theoretically become a more reasonable endeavor. or maybe not, we just end up back where we are because the llm has produced unusable code or an impossible-to-find bug which delays shipment etc.

New comment by rajman187 in "All-optical synthesis chip for large-scale intelligent semantic vision"

rajman187 — Thu, 01 Jan 2026 04:01:33 +0000

Re: cerebras, they filed a S1 [1] last year when attempting to go public. It showed something like a $60M+ loss for the first 6 months of 2024. The IPO didn’t happen because the CEO’s past included some financial missteps and the banks didn’t want to deal with this. At the time the majority of their revenue came from a single source in Abu Dhabi, as well. They did end up benefiting by the slew of open source model releases which enabled them to become inference providers via APIs rather than needing to provide the full stack for training.

[1] https://www.sec.gov/Archives/edgar/data/2021728/000162828024...

New comment by rajman187 in "We cut our Mongo DB costs by 90% by moving to Hetzner"

rajman187 — Fri, 14 Nov 2025 00:54:47 +0000

> You could cut your MongoDB costs by 100% by not using it ;)

Came here to say exactly this

New comment by rajman187 in "GPT-OSS 120B Runs at 3000 tokens/sec on Cerebras"

rajman187 — Sat, 08 Nov 2025 12:48:05 +0000

They’ve filed a S1 [1] last year when attempting to go public. It showed something like a $60M+ loss for the first 6 months of 2024. The IPO didn’t happen because the CEO’s past included some financial missteps and the banks didn’t want to deal with this. At the time the majority of their revenue came from a single source in Abu Dhabi, as well

[1] https://www.sec.gov/Archives/edgar/data/2021728/000162828024...

New comment by rajman187 in "Amazon Rivian electric delivery vans arrive in Canada"

rajman187 — Mon, 03 Nov 2025 01:11:52 +0000

If I could upvote this more than once I certainly would

New comment by rajman187 in "Thoughts on Mechanical Keyboards and the ZSA Moonlander"

rajman187 — Fri, 26 Sep 2025 23:09:50 +0000

My main keyboard has been a 34-key split Ferris. I usually have either a trackpad between the halves if I’m using a Mac or an ergonomic Logitech if on my Linux desktop. Not having to move my hands at all while being able to reach any keys/characters I need has been a welcomed change, worth remapping my brain.

https://arjtala.github.io/2022/09/17/ferris-compact.html

New comment by rajman187 in "DINOv3"

rajman187 — Thu, 21 Aug 2025 04:14:35 +0000

Yeah the org structure is one thing, the missions are another. Yann adds some clarity here

https://www.linkedin.com/posts/yann-lecun_were-excited-to-ha...

New comment by rajman187 in "DINOv3"

rajman187 — Fri, 15 Aug 2025 00:25:10 +0000

This has nothing to do with the newly appointed fellow nor Meta Superintelligence Labs, but rather work from FAIR that would have gone through a lengthy review process before seeing the light of day. Not fun to see the license change in any case

New comment by rajman187 in "Understanding reinforcement learning for model training from scratch"

rajman187 — Sun, 10 Aug 2025 22:15:34 +0000

An intuitive treatment of RLHF, TRPO, PPO, GRPO, DPO and RLAIF

Understanding reinforcement learning for model training from scratch

rajman187 — Sun, 10 Aug 2025 22:15:34 +0000

Article URL: https://medium.com/data-science-collective/understanding-reinforcement-learning-for-model-training-from-scratch-8bffe8d87a07

Comments URL: https://news.ycombinator.com/item?id=44858771

Points: 2

# Comments: 1

Rust CLI with Clap

rajman187 — Tue, 01 Jul 2025 01:25:07 +0000

Article URL: https://tucson-josh.com/posts/rust-clap-cli/

Comments URL: https://news.ycombinator.com/item?id=44429695

Points: 97

# Comments: 88

New comment by rajman187 in "V-JEPA 2 world model and new benchmarks for physical reasoning"

rajman187 — Thu, 12 Jun 2025 03:56:54 +0000

That’s why you have encoders as well as decoders. For example, another model from Meta does this for translations; they have encoders and decoders into a single embedding space that represents semantic concepts for each language

https://ai.meta.com/research/publications/sonar-sentence-lev...

New comment by rajman187 in "Mlx-community/OLMo-2-0325-32B-Instruct-4bit"

rajman187 — Tue, 18 Mar 2025 04:38:57 +0000

Not a lawyer but would assume downloading material from libgen is, in the vast majority of cases, illegal because it's a breach of copyright or similar. That’s gotten Meta in quite a spectacle of late [1]

[1] https://www.loeb.com/en/insights/publications/2023/12/richar...

New comment by rajman187 in "GPT 4.5 level for 1% of the price"

rajman187 — Sun, 16 Mar 2025 13:25:03 +0000

Well there was the case of an employee leaving due to his perceived moral issues around the use of copyrighted material in the training dataset [1]

[1] https://www.pbs.org/newshour/nation/openai-whistleblower-who...

New comment by rajman187 in "Ex-Facebook director's new book paints brutal image of Mark Zuckerberg"

rajman187 — Fri, 14 Mar 2025 09:22:41 +0000

> other than a bit of open source (PyTorch and React are nice, I guess)

Not to detract from your main point but I think this misses a lot of contributions, eg Cassandra, Hive, Presto, GraphQL, the plethora of publications coming out of FAIR (fundamental AI research) and of course the Llama family of models which have enabled quite a few developments themselves

New comment by rajman187 in "Software engineering job openings hit five-year low?"

rajman187 — Fri, 21 Feb 2025 03:23:59 +0000

> It was clearly valuable from day 1

I’m not sure that’s the case even if in retrospect we can clearly argue this

In 1998, Paul Krugman, winner of the Nobel memorial prize in economic sciences, infamously predicted that “the growth of the Internet will slow drastically, as the flaw in ‘Metcalfe’s law’—which states that the number of potential connections in a network is proportional to the square of the number of participants—becomes apparent: most people have nothing to say to each other! By 2005 or so, it will become clear that the Internet’s impact on the economy has been no greater than the fax machine’s” [1] and even though that turned out to be spectacularly wrong it shows the attitude in the early days wasn’t one of absolute certainty.

And certainly the current AI boom is most visibly known for LLMs but there is a lot more happening beyond chatbots.

[1] https://www.snopes.com/fact-check/paul-krugman-internets-eff...

New comment by rajman187 in "Sharing new research, models, and datasets from Meta FAIR"

rajman187 — Sat, 14 Dec 2024 00:32:44 +0000

It originates in Yann LeCunn’s paper from 2022 [1], the term AMI being district from AGI. However, the A has changed over the past few years from autonomous to advanced and even augmented, depending on context

[1] https://openreview.net/pdf?id=BZ5a1r-kVsf

New comment by rajman187 in "Sail – Unify stream processing, batch processing and compute-intensive workloads"

rajman187 — Tue, 10 Sep 2024 13:58:04 +0000

From the documentation [1]

> The mission of Sail is to unify stream processing, batch processing, and compute-intensive (AI) workloads. Currently, Sail features a drop-in replacement for Spark SQL and the Spark DataFrame API in single-process settings.

[1] https://docs.lakesail.com/sail/latest/

New comment by rajman187 in "Nearly half of Nvidia's revenue comes from four mystery whales each buying $3B+"

rajman187 — Sat, 31 Aug 2024 19:50:48 +0000

MTIA will be for inference initially. Another to add to the list is wafer maker Cerebras

https://www.forbes.com/sites/craigsmith/2024/08/27/cerebras-...