Hacker News: pton_xd

New comment by pton_xd in "Everyone Should Know SIMD"

pton_xd — Wed, 22 Jul 2026 20:11:00 +0000

"More importantly, when this loop matters enough for me to care about a 5x speedup, I want the vectorization to be explicit and predictable. I don't want an unrelated code change or compiler update to quietly turn it back into a scalar loop."

Only tangentially related but this is by far the most painful part about optimizing code for JIT compilers like V8. Even changing a constant from 1 to 1.0 somewhere else can change the optimizations performed and lead to an unexpected performance decrease.

New comment by pton_xd in "Claude Code uses Bun written in Rust now"

pton_xd — Mon, 20 Jul 2026 06:49:34 +0000

This is standard practice in the games industry.

New comment by pton_xd in "We want Texans to know their rights"

pton_xd — Sun, 19 Jul 2026 22:26:30 +0000

"Last May, EFF reported that a sheriff’s office in Texas searched data from more than 83,000 automated license plate reader (ALPR) cameras to track down a woman suspected of self-managing an abortion."

These people really have nothing better to do?

New comment by pton_xd in "Holding the LLM Stack in Your Head"

pton_xd — Sun, 19 Jul 2026 18:06:27 +0000

"I wrote this series as a learning exercise, in collaboration with AI (Claude Opus 4.8). It's me thinking out loud with a model to understand the stack end to end, not an authoritative reference. Take it with a grain of salt, and double-check anything you plan to rely on."

The author admits as much. It's basically him prompting, "Hey Claude write a long series about LLM tech." Waste of time.

Also I just realized, the information might be subtly wrong or misleading because Anthropic makes Claude dumber when trying to reverse engineer LLMs, which is hilarious. And the author is basically saying hey, I don't know if any of this is correct but, like, enjoy reading it! Hah.

New comment by pton_xd in "When A.I. is a member of the family"

pton_xd — Wed, 15 Jul 2026 19:30:45 +0000

This is going to create some kind of maladaptive social issues with heavy users, just like sexual dysfunction from pornography addiction. These people won't be able to bond with regular people, or maybe even their own family, after a while.

New comment by pton_xd in "Are we offloading too much of our thinking to AI?"

pton_xd — Tue, 14 Jul 2026 18:34:26 +0000

> A novel is a bunch of words

> What's valuable in a novel (or a poem) is in the words.

Even if the words are a lie? Misleading? False?

I'm not even talking about LLMs. What if it's propaganda designed to influence your thinking, possibly against your own interests; are those still valuable words that you'd cherish reading?

My point is that the source matters, intent matters, and authenticity matters. To me, anyway.

New comment by pton_xd in "AI boosts research careers but narrow the span of ideas explored: study"

pton_xd — Sun, 12 Jul 2026 15:54:58 +0000

They interpolate data in an XYZ dimensional space. The implications of that is beyond our comprehension.

I have a hard time believing that all novel concepts yet to be discovered are contained within that space, though.

New comment by pton_xd in "Building a real-time AI tutor for 5-year-olds"

pton_xd — Fri, 10 Jul 2026 13:06:28 +0000

Curious if this can be combined with AI-generated videos that "maximally drive a targeted brain region" (another post on the front page of HN today).

These poor kids don't stand a chance... to not learn something!

New comment by pton_xd in "AI content is everywhere on social media, especially LinkedIn"

pton_xd — Thu, 09 Jul 2026 16:36:40 +0000

Product and service reviews are completely useless now too, and have been for a while. Restaurant ratings are pure noise, everything is 4 stars and there is absolutely no correlation to the quality of food or service. None of it is real.

It's bleak out there, on the internet.

New comment by pton_xd in "EU now one step away from reviving private message scanning rules"

pton_xd — Wed, 08 Jul 2026 18:37:57 +0000

I don't understand the EU's position on privacy. On the one hand, they enacted GDPR to give you control over access to your personal data.

On the other, they need access to all of your data.

New comment by pton_xd in "US residents angry datacenters 'shoved down our throats' are recalling officials"

pton_xd — Fri, 03 Jul 2026 17:47:45 +0000

> We should all keep in mind that foreign interests, primarily China, are astroturfing to drive resentment in the USA against AI and datacenters.

I'm pretty sure the economics of it for the average citizen takes care of the resentment all by itself. No need for elaborate conspiracy theories.

New comment by pton_xd in "Professor denounces mass AI fraud on an exam at Brown"

pton_xd — Sun, 28 Jun 2026 23:41:30 +0000

1-on-1 interviews with a LLM sounds like it'd go over about as well as AI customer service.

New comment by pton_xd in "Epic Games announces Lore version control system"

pton_xd — Wed, 17 Jun 2026 15:03:35 +0000

How do you merge changes to a texture, mesh, audio file, etc?

New comment by pton_xd in "Claude: Elevated errors across many models"

pton_xd — Tue, 16 Jun 2026 19:19:38 +0000

Resolve elevated errors, don't stop until you are finished.

New comment by pton_xd in "If Claude Fable stops helping you, you'll never know"

pton_xd — Wed, 10 Jun 2026 04:45:34 +0000

Amazing. Next year you'll need to be nice to Claude and praise the geniuses working at Anthropic to maintain full productivity.

New comment by pton_xd in "Federal judge blocks H1B visa $100K fee"

pton_xd — Tue, 09 Jun 2026 00:56:48 +0000

Those newspaper tech job ads have been going on for at least the last... 20 years. When you see those, the company already has the role filled, they just need a justification for the visa. "We tried to find a US worker but failed!" Which honestly may or may not be true, I think the ad is just standard procedure at this point.

New comment by pton_xd in "Let's celebrate work that is 100% human-made"

pton_xd — Fri, 05 Jun 2026 20:48:43 +0000

> There's absolutely nothing wrong with using AI and it's something we should be celebrating.

Ok, but there's also nothing wrong with celebrating not using AI.

New comment by pton_xd in "Microsoft announces Scout, an autonomous AI agent built on OpenClaw"

pton_xd — Tue, 02 Jun 2026 21:45:10 +0000

Tax the tokens, I actually like that idea. It'd be like a gasoline tax -- drivers pay for infrastructure maintenance. In this case, token consumers would pay for the increased burden on the grid.

New comment by pton_xd in "Florida sues OpenAI and Sam Altman over AI risks"

pton_xd — Mon, 01 Jun 2026 23:46:15 +0000

> Don’t be fooled, they already 100% do that if you use any of these products.

Just to clarify for anyone not paying attention -- Anthropic has written postmortems detailing their Claude Code monitoring and how they "coordinated with authorities" as they "gathered actionable intelligence" from users creating bad content [0].

[0] https://www.anthropic.com/news/disrupting-AI-espionage

New comment by pton_xd in "Florida sues OpenAI and Sam Altman over AI risks"

pton_xd — Mon, 01 Jun 2026 21:04:56 +0000

Fair but my point is simply, if a gun kills a person it's functioning as intended, but you can't say the same about a chat bot.