Hacker News: tomjakubowski

New comment by tomjakubowski in "Getting 25 Gbps Thunderbolt Ethernet on My Mac Studio"

tomjakubowski — Fri, 31 Jul 2026 22:45:56 +0000

Might their professionals market segment (designers, video editors, 3d artists, and so on) still be using thunderbolt and LAN storage? This was the case ~7 years ago when I worked adjacent to these sorts of users. Video files are huge and expensive in time and money to transit with cloud storage providers.

New comment by tomjakubowski in "Where .env Went Wrong"

tomjakubowski — Fri, 31 Jul 2026 17:59:38 +0000

pydantic-settings is not limited to loading from config files. It is easy to populate a settings model from environment variables, for example. With a little bit of glue code it could load from the secretspec sdk.

New comment by tomjakubowski in "Dubious research tied to Red Bull has shaped energy drink policy"

tomjakubowski — Fri, 31 Jul 2026 16:57:51 +0000

There is actually quite a lot of variation from person to person in caffeine elimination half-life, from about 1.5-9 hours. Some of my extended family could drink a cup of coffee right before bed without issue.

https://www.ncbi.nlm.nih.gov/books/NBK223808/

New comment by tomjakubowski in "Dubious research tied to Red Bull has shaped energy drink policy"

tomjakubowski — Fri, 31 Jul 2026 16:51:15 +0000

Drip coffee has ~40-50% more caffeine per 8oz serving than Red Bull (about 90-100mg vs 65mg). The nice thing about coffee is that the mouth-puckering tannins make it harder to absolutely pound them, like one can do easily with cans of Red Bull.

New comment by tomjakubowski in "The lost civic life of movie rental stores"

tomjakubowski — Thu, 30 Jul 2026 17:03:18 +0000

Somewhat to my surprise, given its proximity to skid row and downtown's general trend since Covid, in my experience the LA Central Library usually has few visibly homeless people inside. I work remotely and live nearby and walk there every now and then to work outside the home. Almost everyone I see hanging out in the study table areas seem to be students or remote workers. The few homeless people I have seen at the library keep to themselves and often are reading quietly like any other patron.

New comment by tomjakubowski in "The lost civic life of movie rental stores"

tomjakubowski — Thu, 30 Jul 2026 16:52:40 +0000

It grinds my gears a bit when "works 9-5 in an office" is equated with "gainfully employed". There are lots of working people who have free time during these hours: restaurant and retail workers, hospital nurses and doctors, firefighters and EMTs, artists and artisans, YouTubers and professional HN posters, actors and circus performers, authors and architects, homemakers and remote office workers, and so on.

New comment by tomjakubowski in "Show HN: How far do I have to go to run into 100k people?"

tomjakubowski — Wed, 29 Jul 2026 04:07:00 +0000

Yeah, this can't possibly be right. Los Angeles, the city, has less than 4 million people, and there are complete "circles" of presumably 7.2 million people entirely within its boundaries.

If you set the petal population threshold to a low value, like 10k or 20k, and drag it to a densely populated area like Koreatown, you'll get a degenerate "circle" with 0 feet in every direction.

New comment by tomjakubowski in "C/C++ projects packaged for Zig"

tomjakubowski — Tue, 28 Jul 2026 07:11:14 +0000

The build.zig doesn't build anything from the doc or tests folders. Otherwise, yeah.

New comment by tomjakubowski in "How is the Bun rewrite in Rust going?"

tomjakubowski — Mon, 27 Jul 2026 21:02:02 +0000

Yes, and curiously many of the tellings of this story don't account for the costs of the human software engineers (Jarred and the other bun team members) who guided all of this work.

New comment by tomjakubowski in "Businesses with ugly AI menu redesigns"

tomjakubowski — Wed, 22 Jul 2026 22:08:38 +0000

As a digital native, I was shocked to learn that Photoshop's dodge and burn tools were based on real physical techniques for photo development!

https://en.wikipedia.org/wiki/Dodging_and_burning

New comment by tomjakubowski in "Jack Dorsey launches Buzz to combine team chat, AI agents and Git hosting"

tomjakubowski — Tue, 21 Jul 2026 21:18:01 +0000

It's potentially open to the public as well, given the right legal action. The Enron email dump revealed secrets that presumably ended several marriages.

New comment by tomjakubowski in "Caffeine and Cardiovascular Disease: AHA Scientific Statement"

tomjakubowski — Mon, 20 Jul 2026 17:58:19 +0000

Well, there is Eureka[!] magazine: https://mathigon.org/eureka

New comment by tomjakubowski in "Dupes took over the world"

tomjakubowski — Mon, 20 Jul 2026 08:05:10 +0000

Only mozzarella di bufala campana has PDO, even in Italy there are non-PDO, generic mozzarella cheeses produced outside the region.

New comment by tomjakubowski in "Claude Fable produced a counterexample to the Jacobian Conjecture"

tomjakubowski — Mon, 20 Jul 2026 04:40:02 +0000

Agreed totally. When past computer-assisted proofs were published, nobody (or hardly anyone) waxed about this being evidence of Rocq or Coq as superintelligent or even conscious beings of some kind, as people have said about LLMs.

New comment by tomjakubowski in "Kaiser nurses say AI, surveillance are making their jobs and patient care worse"

tomjakubowski — Sat, 18 Jul 2026 01:10:36 +0000

Mangione had back issues and apparently some difficulty in getting treatment for it, but he wasn't insured by UHC. According to his manifesto, he chose Brian Thompson as his victim because UHC was the largest health insurance company in the United States.

New comment by tomjakubowski in "AWS: Inaccurate Estimated Billing Data – $1.7 billion"

tomjakubowski — Fri, 17 Jul 2026 19:52:19 +0000

But 2^30 is 28.

New comment by tomjakubowski in "Profiling the "Abundance" housing bottleneck with real data"

tomjakubowski — Mon, 13 Jul 2026 04:13:37 +0000

Huh? I thought that Vienna's partition period following WWII lasted more like ten years than sixty.

https://en.wikipedia.org/wiki/Allied-occupied_Austria

New comment by tomjakubowski in "Since Chromium 148, Math.tanh is now fingerprintable to link underlying OS"

tomjakubowski — Mon, 13 Jul 2026 04:06:02 +0000

Hopefully it takes much less than a millisecond to render a single emoji. Ca. 2018 I wrote some bad OpenGL code which could render a swarm of millions of poop emoji on a rather large display at 60 fps, so that was less than ~16e-6 ms per emoji.

New comment by tomjakubowski in "My thoughts on the Bun Rust rewrite"

tomjakubowski — Thu, 09 Jul 2026 18:21:38 +0000

You're both right: the essay does not really contain ad hominem fallacies, but the essay itself is surely an ad hominem attack, on Jarred as a person. No judgment here, I don't know Jarred or Andrew at all, but like other commenters I did find the closing paragraphs saying the author has no ill-will towards Jarred quite unbelievable.

New comment by tomjakubowski in "My thoughts on the Bun Rust rewrite"

tomjakubowski — Thu, 09 Jul 2026 18:16:24 +0000

It may be hard to separate the work and non-work personas of Jarred in particular. I watched an interview with Jarred where the interviewer asked what he liked to do for fun, what were his hobbies outside of work, and so on. His answer was that he liked working on Bun, and that's all he did. I felt a bit sad for him about it: even Linus T. has hobbies (like diving) and has raised a family.

That said, it isn't necessarily the case that workaholics are bad managers, or that they insist on workaholism in their subordinates. We, generally, don't have access to Andrew's rumornet, we can only go off what Jarred's said publicly.