Hacker News: kposehn

New comment by kposehn in "Show HN: ChartGPU – WebGPU-powered charting library (1M points at 60fps)"

kposehn — Wed, 21 Jan 2026 17:04:17 +0000

Agreed. This is highly, highly useful. Going to integrate this today.

Developing a Giga pixel linear scanning format camera [video]

kposehn — Mon, 24 Nov 2025 04:53:40 +0000

Article URL: https://youtu.be/KSvjJGbFCws?si=Q1ejGM7twdU1gzUY

Comments URL: https://news.ycombinator.com/item?id=46030516

Points: 1

# Comments: 1

New comment by kposehn in "Show HN: Term.everything – Run any GUI app in the terminal"

kposehn — Wed, 10 Sep 2025 18:45:39 +0000

Wow. I love this! I actually have a specific, esoteric use for this: VSCode on iPad

Hopefully supports iPadOS one day.

Geoffrey Huntle Is Cursed: Making a GenZ slang programming language with Claude

kposehn — Tue, 09 Sep 2025 22:14:42 +0000

Article URL: https://simonwillison.net/2025/Sep/9/cursed/

Comments URL: https://news.ycombinator.com/item?id=45190068

Points: 4

# Comments: 0

New comment by kposehn in "Launch HN: Channel3 (YC S25) – A database of every product on the internet"

kposehn — Wed, 20 Aug 2025 22:33:25 +0000

Putting my affiliate hat on here for a minute...

Very cool to see how you've aggregated so many products into one service. How do you plan to compete with FMTC and others that aggregate feeds together? Speaking as a publisher, I'd not want to share commission unless absolutely necessary and would prefer to just pay a fee so I can access the feed and not have an unknown amount of revenue lost between myself and the merchant.

As a brand running a program, I'd be very cautious about allowing my feed into your database if I didn't have any way to finding out who is featuring my products and where/how. Are you providing visibility to the brands since you're effectively functioning as a sub-affiliate network?

Those questions aside, great to see YC funding a startup in the space!

New comment by kposehn in "Tram Trains"

kposehn — Mon, 28 Jul 2025 21:02:21 +0000

Interesting - I wasn't aware this covered tram-trains. I was under the impression it only granted the exception to lighter off-the-shelf EU equipment like Stadler FLIRT or Siemens Desiro.

New comment by kposehn in "Tram Trains"

kposehn — Wed, 23 Jul 2025 23:49:19 +0000

You're correct. LIRR trains are built to a much heavier standard and thus are allowed on the same tracks as freight rail.

New comment by kposehn in "Tram Trains"

kposehn — Wed, 23 Jul 2025 23:48:51 +0000

Unfortunately no. The main difference is mass - US trains are vastly heavier than anything in the UK so by the time you make a tram crashworthy it isn't a tram any longer.

That said, I believe the FRA did allow lighter designs such as the Siemens FLIRT for commuter lines so the rules are definitely less onerous.

New comment by kposehn in "Tram Trains"

kposehn — Wed, 23 Jul 2025 19:30:50 +0000

> The low density of Charlotte means a transport network like Munich’s is not viable, but the city could take its pre-existing light rail network and join it up to the extensive network of railroad lines around the city that are currently used only for moving freight.

This is not a feasible option due to the vast difference in crashworthiness standards between US freight rail and other system types such as light rail. The FRA actually prohibits allowing these two types on the same network of tracks at the same time. However, they could use a line along the right-of-way were it big enough to accommodate another set of tracks.

Security Vulnerability on US Freight Trains Left Unfixed for 13 Years

kposehn — Tue, 15 Jul 2025 02:45:31 +0000

Article URL: https://www.tomshardware.com/tech-industry/cyber-security/security-vulnerability-on-u-s-trains-that-let-anyone-activate-the-brakes-on-the-rear-car-was-known-for-13-years-operators-refused-to-fix-the-issue-until-now

Comments URL: https://news.ycombinator.com/item?id=44567395

Points: 2

# Comments: 0

New comment by kposehn in "Surprisingly fast AI-generated kernels we didn't mean to publish yet"

kposehn — Sat, 31 May 2025 18:54:32 +0000

This is similar to something we've been doing for a while. Instead of individual agents we are creating many iterations and sub-iterations of spawned agents that are largely autonomous. A lot of the human-centric paradigms just don't really apply to LLMs/AI but people are used to approaching them that way.

Researchers create a one-dimensional gas out of light

kposehn — Mon, 05 May 2025 04:04:18 +0000

Article URL: https://www.uni-bonn.de/en/news/177-2024

Comments URL: https://news.ycombinator.com/item?id=43891855

Points: 7

# Comments: 0

New comment by kposehn in "Walmart plans EV Charging network which will blanket the US within a few years"

kposehn — Sun, 27 Apr 2025 19:29:01 +0000

I think the app will be for plug-and-charge users, while they'll have credit card readers for everyone else.

I do agree that chargers requiring an app are a royal pain. We're an all-EV household and I don't bother with local chargers that don't have readers or support plug-and-charge. There's a lot of Shell chargers in our area that require an app to work and almost no-one uses them because of how clunky it is.

New comment by kposehn in "Walmart plans EV Charging network which will blanket the US within a few years"

kposehn — Sun, 27 Apr 2025 19:26:52 +0000

Glad to see Walmart going further with DCFC build-out, especially with 400kw chargers.

New comment by kposehn in "Launch HN: Maritime Fusion (YC W25) – Fusion Reactors for Ships"

kposehn — Wed, 26 Feb 2025 21:42:49 +0000

Yes, I meant MW

New comment by kposehn in "Launch HN: Maritime Fusion (YC W25) – Fusion Reactors for Ships"

kposehn — Wed, 26 Feb 2025 21:42:30 +0000

I meant MW :P

New comment by kposehn in "Launch HN: Maritime Fusion (YC W25) – Fusion Reactors for Ships"

kposehn — Wed, 26 Feb 2025 16:59:38 +0000

Very cool. If you could also make a smaller one with ~3kw output that fits on a locomotive frame you'd literally have the entire freight rail industry the world over as customers.

FBI Warns iPhone and Android Users–Stop Sending Texts

kposehn — Sat, 07 Dec 2024 01:06:44 +0000

Article URL: https://www.forbes.com/sites/zakdoffman/2024/12/06/fbi-warns-iphone-and-android-users-stop-sending-texts/

Comments URL: https://news.ycombinator.com/item?id=42346311

Points: 9

# Comments: 1

New comment by kposehn in "Space is a latent sequence: A theory of the hippocampus"

kposehn — Fri, 02 Aug 2024 03:07:18 +0000

> Some will be mystified how study of railways, maps and fish trading has anything to do with cognitive neuroscience and representing space.

Commenting as someone who loves railways, maps and fish(ing) this is both a novel thought and endlessly fascinating. I fear you've provided me another rabbit hole to explore. Thank you!

New comment by kposehn in "Show HN: Sonauto – A more controllable AI music creator"

kposehn — Wed, 10 Apr 2024 21:38:03 +0000

I've found that adding prompt elements such as "hi-fi", "sharp imaging" and "clear soundstage" have helped create a less compressed and generally cleaner sound.