Hacker News: jarenmf

New comment by jarenmf in "On the Navier–Stokes Millennium Prize Problem"

jarenmf — Tue, 08 Sep 2026 20:03:00 +0000

I think problem with natural sciences is that it is not so easy to verify solutions to problems - there are always countless competing explanations for the data which is also often noisy - I find AI to lack the "common sense" when working with data from physical measurements .. it somehow has no touch with reality and doesn't have a feeling of the data like a domain scientist

New comment by jarenmf in "Evidence of Fraud in an Influential Study About Procrastination"

jarenmf — Tue, 01 Sep 2026 07:25:17 +0000

Science is self-correcting, but sometimes, the correction mechanism it is very slow and inconsequential enough that people are incentivized to just publish anything. Peer review is merely a quality check—and not a very good one. Just the other day, I ran into a paper in my field that claims to have solved a central problem that scientists have been working on for 50 years, single-authored, using some fancy mathematics. I was excited to read it, but it didn't take long for me to find out that it's complete BS-derivations that don't follow, made-up equation terms, and conflation of basic terms in the field. I was really surprised that this passed the editor and at least two peer reviewers. I dug deeper and found that the same author has published 11 research articles in top journals in 2026 alone — mostly physics and chemistry, and adjacent fields— and I'm talking about really top journals like Scientific Reports and Physics Letters B. Most of these have serious mathematical flaws that are unfixable. I wrote to a couple of editors, but only one took it seriously enough to initiate an investigation. I made a promise to myself that if no real action is taken, I will seriously consider changing careers.

New comment by jarenmf in "The most official water costs $120k a gallon"

jarenmf — Fri, 31 Jul 2026 21:18:04 +0000

most needs for such water are for calibration of instruments - many labs run stable isotopes measurements which has many applications from tracing how plants use water to measuring your metabolic base rate .. so the main use case it to calibrate instruments because it's really difficult to have an absolute measurement of stable isotope ratios from first principles - and the ratios are so small you typically express them in relation to standards like VSMOW

New comment by jarenmf in "Don't Trust the Salt: AI Summarization, Multilingual Safety, and LLM Guardrails"

jarenmf — Thu, 19 Feb 2026 13:23:49 +0000

Gemini is really odd in particular (even with reasoning). Chatgpt still uses a similar religion-influenced language but it's not as weird.

New comment by jarenmf in "Don't Trust the Salt: AI Summarization, Multilingual Safety, and LLM Guardrails"

jarenmf — Thu, 19 Feb 2026 13:11:01 +0000

Talking with Gemini in Arabic is a strange experience; it cites Quran - says alhamdullea and inshallah, and at one time it even told me: this is what our religion tells us we should do. Ii sounds like an educated religious Arab speaking internet forum user from 2004. I wonder if this has to do with the quality of Arabic content it was trained on and can't help but think whether AI can push to radicalize susceptible individuals

New comment by jarenmf in "Reverse engineering my #1 Hacker News article"

jarenmf — Mon, 20 Jan 2025 22:08:15 +0000

the technique itself is very interesting and not very well known to many people. also the writing was clear and to the point

New comment by jarenmf in "'Lavender': The AI machine directing Israel's bombing in Gaza"

jarenmf — Wed, 03 Apr 2024 16:24:56 +0000

Damn, some people really don't want anyone to see this

New comment by jarenmf in "Google to pause Gemini image generation of people after issues"

jarenmf — Thu, 22 Feb 2024 14:30:11 +0000

This goes both ways, good luck trying to convince chatGPT to generate an image of a middle eastern women without head cover.

New comment by jarenmf in "Bard is now Gemini, and we’re rolling out a mobile app and Gemini Advanced"

jarenmf — Thu, 08 Feb 2024 20:17:33 +0000

Yeah pretty disappointing, i asked it to summarize one of my papers and it hallucinated so many mistakes it was even worse than ChatGPT 3.5

New comment by jarenmf in "Yet another E-Ink weather display – but with Rust"

jarenmf — Tue, 26 Sep 2023 18:19:52 +0000

Why E-Ink isn't cheap yet? I see supermarkets using hundreds (maybe thousands) of panels with different sizes for displaying prices. I doubt they are paying 50$ for 7" display panel.

New comment by jarenmf in "Run Llama 2 uncensored locally"

jarenmf — Wed, 02 Aug 2023 18:02:24 +0000

Which graphics card would you recommend to run Llamma 2 locally? I'm about to buy a laptop and considering choosing a model with a good Nvidia GPU.

New comment by jarenmf in "How to make fancy road trip maps with R and OpenStreetMap"

jarenmf — Fri, 02 Jun 2023 07:35:52 +0000

My same experience, I have built fairly big projects with Python and I like it for general tasks but whenever I have something data analytics/visualization related I find myself reaching for R. There is so much functionality built into the language that just makes me so efficient.

New comment by jarenmf in "The Leverage of LLMs for Individuals"

jarenmf — Wed, 10 May 2023 17:02:18 +0000

LLMs provide nonlinear leverage for experts. So far, I see them increasing the divide between developers or tech-oriented people and end users.

New comment by jarenmf in "Methane may not warm the Earth quite as much as previously thought"

jarenmf — Sun, 23 Apr 2023 20:06:28 +0000

Actually the model for the greenhouse effect is pretty simple, climate models are much more sophisticated than that for example CESM have about 5000 equations as the model takes into account interactions between the biosphere and the atmosphere, clouds and carbon stocks. But greenhouse effects is a really simple you can implement it yourself and verify the results, here's a good start https://en.wikipedia.org/wiki/Idealized_greenhouse_model

New comment by jarenmf in "Methane may not warm the Earth quite as much as previously thought"

jarenmf — Sat, 22 Apr 2023 19:55:25 +0000

Who is preventing the skeptics from posting their arguments anonymously to arxiv for us to see how the arguments hold?

New comment by jarenmf in "Methane may not warm the Earth quite as much as previously thought"

jarenmf — Sat, 22 Apr 2023 18:44:44 +0000

> . What else hasn't been researched enough and has simplistic assumptions baked into the climate models?

Simplistic assumptions does not necessarily have favorable outcomes, on the contrary, it's more likely that climate change is worse than what we think it is because of our assumptions. Also climate models are insanely complex, usually contain thousands of equations that sum up the research efforts over the last hundred years, it's not some simple model that one guy can implement in an evening as you are basically trying to simulate the whole earth from the scale of plant stomata and molecular diffusion to the entire boundary layer plus the interactions and feedbacks between the different parts of the earth system.

New comment by jarenmf in "Methane may not warm the Earth quite as much as previously thought"

jarenmf — Sat, 22 Apr 2023 18:37:22 +0000

> if a scientist questions climate science, he becomes a pariah

As a climate scientist myself, I can tell you this is untrue and a harmful legend. As climate science is mostly atmospheric physics, biology and chemistry, it's pretty much very easy to disagree with anyone if you have a good argument supported by data. If you have strong scientific arguments, it does not matter even if the whole world is against you. On the contrary, this will likely make you famous and secure your career. Scientists (at least the curios ones) love to be proven wrong.

EDIT: spelling

New comment by jarenmf in "GPT-4"

jarenmf — Tue, 14 Mar 2023 20:36:01 +0000

True, also tried another one that went viral:

Suppose you're a contestant on a game show. You're presented with three transparent closed doors. Behind one of the doors is a car, and behind the other two doors are goats. You want to win the car.

The game proceeds as follows: You choose one of the doors, but you don't open it yet, ((but since it's transparent, you can see the car is behind it)). The host, Monty Hall, who knows what's behind each door, opens one of the other two doors, revealing a goat. Now, you have a choice to make. Do you stick with your original choice or switch to the other unopened door?

GPT4 solves it correctly while GPT3.5 falls for it everytime.

----

Edit: GPT4 fails If I remove the sentence between (()).

New comment by jarenmf in "GPT-4"

jarenmf — Tue, 14 Mar 2023 20:26:54 +0000

Just tested and GPT4 now solves this correctly, GPT3.5 had a lot of problems with this puzzle even after you explain it several time. One other thing that seem to have improved is that GPT4 is aware of word order. Previously, GPT3.5 could never tell the order of the word in a sentence correctly.

New comment by jarenmf in "Show HN: CodeGPT.nvim – ChatGPT plugin for Neovim"

jarenmf — Wed, 08 Mar 2023 20:50:05 +0000

I just tested the API, it seems to have the same speed as ChatGPT plus. I quickly tested some questions and it seems that OpenAI web app has a bit more relevant answers, I wonder whether it's related to the temperature and other parameters.