Hacker News: lukah

New comment by lukah in "OpenAI’s o1 correctly diagnosed 67% of ER patients vs. 50-55% by triage doctors"

lukah — Mon, 04 May 2026 09:37:40 +0000

Exactly this. Most diagnosis isn’t about pinpointing the underlying exact cause, it’s ruling out the really bad stuff and minimising harm. Differential diagnosis just isn’t real world medicine.

New comment by lukah in "Jury told that Meta, Google 'engineered addiction' at landmark US trial"

lukah — Tue, 10 Feb 2026 15:53:41 +0000

I'm not at all familiar with the American justice system, but would the fact that this case specifically describes the targeting of minors with such addictive tactics change things at all?

New comment by lukah in "Anthropic's original take home assignment open sourced"

lukah — Wed, 21 Jan 2026 12:54:30 +0000

I've never heard AI-assisted coding referred to as "RalphWiggum"ing a problem, and now I will have to use that always. Thank you.

New comment by lukah in "Why proteins fold and how GPUs help us fold"

lukah — Mon, 15 Dec 2025 10:31:57 +0000

I interpreted that section as alphafold not learning physics, but rather correlations within a constrained setting that a-priori correspond to physically sound inferences. It has a specific architecture that allows the model to make inferences that are more physically plausible than not, but not that it’s discovering actual, causally verifiable laws of nature (like what I’d assume are encoded into another non-ML approach to the folding problem for example).

New comment by lukah in "Transformers Without Normalization"

lukah — Sat, 15 Mar 2025 06:52:54 +0000

From their implementation it looks like they’re calculating tanh and then applying a weight and bias

New comment by lukah in "Ocean Carbon Removal: Captura's marine carbon capture explained"

lukah — Fri, 27 Dec 2024 11:49:56 +0000

It’s true that this could lead to unintended consequences as humanity is directly experimenting with a complex balanced natural system. But another perspective is that we have already done/are doing exactly that by pumping CO2 into the atmosphere at rates that wouldn’t have happened in nature. I know “two wrongs don’t make a right”, but it’s perhaps worth considering the price of course correcting our already hugely impactful behaviours, as the butterfly had flown years ago.

New comment by lukah in "Cybertruck's Many Recalls"

lukah — Tue, 26 Nov 2024 06:49:12 +0000

Car panels are convex on nearly all other cars for very good reason. Flat panels are structurally susceptible to damages which wouldn’t mark a standard panel. Adding a highly reflective surface was another great move.

New comment by lukah in "The Power of Small Brain Networks"

lukah — Mon, 25 Nov 2024 06:24:39 +0000

How do they track the brain activity of a fruit fly? That seems incredible to me

New comment by lukah in "Show HN: Using GPT-3 and Whisper to save doctors’ time"

lukah — Tue, 14 Mar 2023 15:08:04 +0000

This is really interesting work, congratulations! A lot of negativity in the comments seems to stem from cynicism around doctors and their billing, but in a country like the UK I know removing essentially "admin tasks" from the GP would be very welcome and give time back to the clinician, allowing them to spend more time focussing on the patient and outcomes.

New comment by lukah in "Understanding and coding the self-attention mechanism of large language models"

lukah — Sat, 11 Feb 2023 07:25:47 +0000

Great answer. Imbuing a deep learning model with well thought out inductive biases is one of the strongest ways of guiding your model to interpret the data the way you want it to. Otherwise it’s kind of shooting in the dark and hoping to get lucky.

I can’t stand it when people lazily personify ML models, but it’s akin to giving someone with no experience some wood and then pointing to a shed and saying “make one of those from this”. Instead you’d expect them to be much more successful if you also give them a saw, a drill, some screws etc.

New comment by lukah in "Aerodynamics of Gravel Bikes"

lukah — Tue, 20 Sep 2022 12:36:05 +0000

If anything, you might be thankful of a full suspension mountain bike on some of our "gravel" trails in the UK. There's such a wide range from US-style back county roads all the way to bridleways with baby-head sized rocks that you probably wouldn't want to be riding on something typically sold as a gravel bike.