Hacker News: rajnathani

New comment by rajnathani in "If your agent commits a crime, who is responsible?"

rajnathani — Wed, 26 Aug 2026 15:35:38 +0000

Very closely related: This is already a point of discussion for level 4/5 ADAS systems. For example, Mercedes stating that they’ll take liability for crashes related to its self-driving system.

New comment by rajnathani in "OpenRouter is joining Stripe"

rajnathani — Thu, 20 Aug 2026 05:27:20 +0000

> Turns out even a proxy can be worth $8bn with the right business model behind it.

People said a similar thing for Cursor simply being a VSCode wrapper for when it crossed unicorn status.

New comment by rajnathani in "Turns are Better than Radians (2022)"

rajnathani — Thu, 20 Aug 2026 05:23:26 +0000

Dumb question: For multiplying for smaller turns such as 1 arc-second (1,296,000 in 1 turn), that would floating point precision issues be a tiny slight issue (22619.4671 arc-seconds in 2pi radians), or is it just a coding convention change?

New comment by rajnathani in "Cerebras CS-4"

rajnathani — Wed, 19 Aug 2026 09:56:34 +0000

Interestingly they’re still on the WSE-3 (5nm TSMC) wafer chip and slightly bumped up the specs there (overlocking mostly it seems), for why it’s called WSE-3 Turbo now. I think people were also expecting WSE-4, as it’s been 2 years now since WSE-3 was launched.

New comment by rajnathani in "Stenchill: 3D Printable Solder Paste Stencil Generator"

rajnathani — Sat, 18 Jul 2026 08:18:32 +0000

For very thin stencils, I doubt plastic 3D printing or even laser-cutting plastic works, as such thin plastics would deform rather than remain flat-ish rigid like steel stencils.

Also for 3D printing solder paste, this technique is called solder jet printing. But it isn’t very popular in the industry (despite being less wasteful) due to it being slower than stencil solder printing.

New comment by rajnathani in "Kimi K3: Open Frontier Intelligence"

rajnathani — Fri, 17 Jul 2026 10:18:51 +0000

Impressive performance (also the part about Delta Attention, which seems interesting).

Not trying to start a flamewar thread, but isn’t every Chinese LLM censored on certain major political topics? I understand that fine-tuning at least DeepSeek can remove this, but just saying.

New comment by rajnathani in "Berkshire's $397B Bet Against an Overheated Market"

rajnathani — Mon, 13 Jul 2026 09:50:12 +0000

I would rename the title to “The Buffett Indicator shows an overvalued market”. For those curious of its definition (from the article):

> The Buffett Indicator, a ratio that measures the market cap of the entire stock market against the GDP of the United States, has hit a record of ~232%. Historically, anything above ~120% is a signal of the market being overvalued.

That being said, it’s not clear that the Buffet Indicator is fully relevant, as a lot of the US AI and AI hardware companies’ market caps which are driving the stock market valuation growth involve a significant portion of their revenue from outside the US, and thus this wouldn’t necessarily count fully to the US’s GDP (for example, tax entity workarounds for foreign obtained revenue).

New comment by rajnathani in "Apple to skip high-end M6 Mac chips in favor of AI-focused M7 line"

rajnathani — Fri, 26 Jun 2026 06:27:40 +0000

Tangential: About 8 years ago ex-Apple chip engineers left to design server-grade chips, this was Nuvia, and they got sued by Apple to the point that they had to get acquired by Qualcomm.

New comment by rajnathani in "The perils of UUID primary keys in SQLite"

rajnathani — Fri, 19 Jun 2026 06:16:22 +0000

Isn’t the case with Postgres too if one doesn’t change the default primary key index for which is B+ Trees? At least Postgres supports a hash index IIRC, but I’m not sure if most developers set it to that when they use UUIDs as primary keys.

New comment by rajnathani in "The Waymo World Model"

rajnathani — Mon, 16 Feb 2026 13:51:56 +0000

Not really I think, they built a simulation engine for autonomous driving, for which tons of such exist out there including ones from Nvidia and also at least 1 open-source one. Using world models is different.

New comment by rajnathani in "Animated Knots"

rajnathani — Tue, 10 Feb 2026 08:49:31 +0000

For these single-website to explain things, I really like that HN's 1-click link to view past submissions shows the past posts (I have seen this useful website come up in the past!):

https://news.ycombinator.com/from?site=animatedknots.com

New comment by rajnathani in "Aging muscle stem cells shift from rapid repair to long-term survival"

rajnathani — Thu, 05 Feb 2026 08:29:37 +0000

Interesting point:

> The research suggests that increased NDRG1 expression emerges through what the scientists call a "cellular survivorship bias"—stem cells that don't accumulate enough NDRG1 die off over time, leaving behind a population of slower but more resilient cells.

New comment by rajnathani in "English professors double down on requiring printed copies of readings"

rajnathani — Thu, 05 Feb 2026 07:04:01 +0000

This exactly.

New comment by rajnathani in "Apple buys Israeli startup Q.ai"

rajnathani — Wed, 04 Feb 2026 09:01:40 +0000

If this works well, then I could finally see that AI wearable pins could be socially feasible. IMO speaking aloud in public to AI doesn't seem like something which will work but it is also what OpenAI is apparently investing a lot into with their hardware ambition with Jony Ive [0].

[0] https://www.bloomberg.com/news/articles/2025-05-21/openai-to...

New comment by rajnathani in "Tesla ending Models S and X production"

rajnathani — Tue, 03 Feb 2026 07:34:25 +0000

> Tesla’s far more popular models are the 3 and Y, which accounted for 97% of the company’s 1.59 million deliveries last year.

TIL that Model S hasn't been as popular. But hopefully when the 2nd gen Roadster finally gets released that it will fill in the slight gap left by Model S's discontinuation.

New comment by rajnathani in "People who know the formula for WD-40"

rajnathani — Mon, 02 Feb 2026 10:08:59 +0000

As a side note: PTFE = PFAS forever chemical.

New comment by rajnathani in "Repatriate the gold': German economists advise withdrawal from US vaults"

rajnathani — Wed, 28 Jan 2026 13:28:26 +0000

Even India recently has repatriated some of its foreign gold reserves (from Bank of England (and possibly other places)):

https://www.bloomberg.com/news/articles/2025-10-29/india-cen...

New comment by rajnathani in "Bugs Apple loves"

rajnathani — Tue, 27 Jan 2026 10:16:03 +0000

Also, not on the list: iCloud having a hard limit of 50,000 total calendar events and silently not syncing beyond it (and similar to the first iCloud Photos issue mentioned on the website: no indication of syncing state to know what's going on). For perspective, as someone using the Apple ecosystem for 10+ years now, that this comes to 13 events a day for 10 years.

New comment by rajnathani in "Mammals have evolved into ant eaters 12 times since the dinosaur age – study (2025)"

rajnathani — Wed, 21 Jan 2026 07:24:33 +0000

The OG quote by him is about rice. Nevertheless, very funny!

New comment by rajnathani in "The Post-American Internet"

rajnathani — Fri, 09 Jan 2026 06:03:59 +0000

I thought this article would have to do with the transfer of ICANN's power from the US government to a general non-profit thing in 2016.