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lkbm

4,544 karma · joined July 23, 2012

Hi, I'm Luca Masters. lucamasters.com

Just a software engineer from North Carolina. I like bicycles and housing co-ops.

meet.hn/city/35.7974807,-82.6839313/Marshall

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lkbm··on Waymo in Dallas
I know it's not popular in some circles to say it, but people (not just evil, rich racists) dislike riding the bus because of homeless people and other people who have little reason (or ability) to conform to social norms. I only saw one a couple altercations on the bus in my years riding it in Austin, but that's enough to get a lot of people to decide it's not worth it, especially women or people with kids.

We're not willing to enforce basic safety on buses, let alone other norms. If Waymo is willing to do that, that will make it available to many more people. Even just not having to wait at the bus stop before sunrise can be a game changer.

lkbm··on Waymo in Dallas
Quoting a dictionary won't get you very far with real people. Those are obviously wrong in that they're overly prescriptive and tied to what was common when they were written. The dictionary is trying to give you an idea of what most public transit looks like. It's not strictly reflective of reality or of actual usage.

Is the city and county provided point-to-point transit for disabled people[0] not "public transit"? Is Line 0[1] not public transit? Most people say yes; the dictionary should be updated to reflect actual usage, not the other way around.

[0] https://www.mta.info/accessibility/access-a-ride

[1] https://fairtiq.com/en/blog/line-zero-the-public-transport-e...

lkbm··on What's Behind the Sharp Drop in Labor Force Participation?
What changed in June?
lkbm··on What's Behind the Sharp Drop in Labor Force Participation?
Pangram gave 95% human for the chunk (1,547 words) that I gave it. Part of a single paragraph was listed as AI.
lkbm··on You don't need React: creating a minimal UI library in Vanilla JavaScript
I switched my small personal projects to preact in a (temporarily successful effort) to get one under 14kb after re-reading [0] a year or two back. So far haven't run into any limitations.

If you need React, then go ahead and use React, but I'd encourage people to try a simple s/react/preact/g on their websites. (Okay, not quite as simple as that, but even if you don't like vibe coding, this is something an LLM can be trusted with.)

[0] https://endtimes.dev/why-your-website-should-be-under-14kb-i...

lkbm··on Google Discloses $94.1B in SpaceX Stock, Marking 6% Stake
Starlink wasn't working yet, but had been announced as a thing they intended to do.
lkbm··on ARC-AGI Leaderboard
Huh. How do things end up with scores like 30.2% (and results between 0% and 1%) if it's that low resolution?
lkbm··on The well-calibrated Bayesian [pdf]
(1982)
lkbm··on Ask HN: Is it just me, or is software buggier across the board?
I think software has always been terribly buggy. Back in the day, things would crash (including your entire OS in many cases) all the time. These days, it's more often smaller, stupid UX issues, but that's been the situation for a few years. I've seen no difference over the past six months.
lkbm··on Claude Code sends 33k tokens before reading the prompt; OpenCode sends 7k
Seems unlikely they'd be this dumb. The way to get us to use more tokens is to make those tokens more useful, not less. Anthropic is full of people (including higher-ups) who know this.
lkbm··on Costco is the anti-Amazon
> The real question is "On my block, what is the probability of any given house having at least one delivery on any given day"

In the city, I used to see multiple Amazon delivery trucks per day. On the rural road I now live on (dead end road with fewer than 30 households), USPS does most of the Amazon delivery, but this is somehow enough people that we see FedEx and/or UPS drive by pretty much every day in addition to USPS obviously driving by six days a week.

Given that they're also visiting the neighboring roads, it's definitely enough for an economy of scale.

lkbm··on Wikipedia Workers to Seek Union Recognition
> If I write stuff on wikipedia, it is opinion of wikipedia

That's obviously false, if for no other reason than:

> and there is rigorous editorial process, to get my stuff published...

There are people who will see and review your work after the fact, but it's published immediately.

> Also here my name is right next to the text, not in wikipedia!

There's a link at the top of every page to see who wrote what text.

lkbm··on Ending respiratory infections
It seems like implementing HEPA filters in every classrooms has the biggest effect. The kids are spreading disease, infecting their parents, who then infect their coworkers.

Nice to see they mention UV, too. Aerolamp[0] is down to ~$500. If it were $100, it'd be easy to get into offices, too. Heck, if I worked in person, I'd buy a $100 one as an employee.

[0] https://aerolamp.net/pages/about-aerolamp

lkbm··on 45°C cooling design cuts data center water use to near zero
This is kinda debunked / obviously false. It's almost entirely a land use issue: a building will create a heat island. Data centers aren't using enough energy to make a significant difference.

More on it at [0], but it doesn't take anything beyond a basic energy calculation to know that 1GW of energy is not going to have a significant effect "6.2 miles away".

[0] https://andymasley.com/writing/data-centers-heat-exhaust-is-...

lkbm··on Researchers used math to crack Wordle
This is how I played Quordle and Octordle, but with just three words (doubt, glyph, raise). Might not scale for all combinations.
lkbm··on Claude Corps
> The entire premise behind AI is that it can amplify (and in some cases) replace human workers. This seems completely backwards to what they're advertising to the enterprise in sales.

idgi. I'm pretty sure this is also exactly what they've been telling enterprise. This has been the line I've been hearing consistently from them (and everyone else).

lkbm··on Show HN: Homebrew 6.0.0
Are you referring how it does a `brew upgrade` when doing a `brew install`? It should tell you how to disable that whenever it happens:

> Adjust how often this is run with `$HOMEBREW_AUTO_UPDATE_SECS` or disable with

> `$HOMEBREW_NO_AUTO_UPDATE=1`. Hide these hints with `$HOMEBREW_NO_ENV_HINTS=1` (see `man brew`).

lkbm··on Can the stockmarket swallow Anthropic, SpaceX and OpenAI?
Following up with recent news, S&P won't waive the requirements: https://www.spglobal.com/spdji/en/documents/indexnews/announ...
lkbm··on Can you solve this hw prompt?
I don't get it. It's asking the student to write a couple essays/journal entries. There's nothing to "solve". You just write.
lkbm··on Ask HN: Who is hiring? (June 2026)
It's kind of weird that I have to install their app on my computer, but recording a short video isn't that big of a deal, IMO.

That said, madiganf: I'd recommend poof-reading that Google Doc in the job posting. There were some malformed sentences. EDIT: Huh, looks like the doc has been edited and the questions themselves have changed a bit. :-)

lkbm··on What five simple habits can do over 35 years
I wouldn't consider "low body weight" to be a habit, but nice to know it's valuable.

I feel like these are all pretty much what everyone already believes. It's good to have studies to confirm and quantify the benefits, but it's hardly news that not smoking is healthier than smoking.

lkbm··on Creatine raises brain energy levels and slows cognitive decline: study
I think you're right.

Confusingly they reference a 2026 article (which isn't included in their citation list) that allegedly includes "placebo-controlled trial", but I think it might just be [0], which is based on the same single-arm trial. If they do have a paper using a placebo-controlled trial, they should definitely include that citation.

[0] https://pmc.ncbi.nlm.nih.gov/articles/PMC12927926/

lkbm··on The map that keeps Burning Man honest
This is definitely a concern. We've pretty much always been green, but it's hard to police after you leave, and usually we're gone before Temple Burn. (One year two of our camp mates stayed for Temple Burn and they ended up having to pack out two extra bikes that got dumped, in addition to having to deal with multiple people trying to camp in our empty spot. Maybe those people would've been fine, but given that they didn't understand the open camping situation, I'm unsure they understood LNT either.)
lkbm··on Today I've made the difficult decision to reduce the size of Coinbase by ~14%
> If you're getting laid off, the only thing that really matters is the severance package.

I don't think this is true. Humans typically prefer "thanks for the hard work, here's your severance" to "you suck, here's your severance, loser."

Humans like being treated with respect, and words are a big part of that. Money is nice, but it's not the only thing we care about.

lkbm··on Ask HN: Who wants to be hired? (May 2026)
Location: Marshall NC

Remote: Preferred (some travel is fine)

Willing to relocate: No

Technologies: Python, Typescript/Javascript (React), Postgres, AWS

Résumé/CV: https://resume.lucamasters.com/

Email: luca@lucamasters.com

My primary experience is subscription ecommerce (starting in tech support and moving into fullstack engineering) and fincom. I'm always happy to learn new tech, but I've mostly done Python and JS/TS in the past few years.

lkbm··on Germany has become the largest ammunition producer in the world
Because we're not here for Reddit jokes.
lkbm··on Changes in the system prompt between Claude Opus 4.6 and 4.7
Yes, but doesn't the token change mean that?
lkbm··on 40% of lost calories globally are from beef, needing 33 cal of feed per 1 cal
> If excess beef consumption were reduced to healthy quantities, as defined by the EAT-Lancet healthy reference diet, and substituted with chicken in forty-eight higher-income countries, the lost calories avoided would be enough to meet the caloric needs of 850 million people.

It's really impressive how efficient chickens are compared to beef. Obviously thinks like legumes are way more efficient, but we've really bred chickens to be meat machines in a way we haven't with cows.

lkbm··on Ask HN: What Are You Working On? (April 2026)
I've been building a Thunderbird extension that gives me the mail view I want.

So far it's mostly just configuring hotkeys to tag messages, and settings to hide or fold messages by tag, but I can trivially add functions to parse common messages, send things to my todo list, etc. It's great how easily programmable this is. I threw together a "summarize message with Gemma4 on Ollama", and it wasn't useful, but was a quick and easy experiment.

Thunderbird extensions are just Javascript using the Thunderbird API, and Claude knows the API, so it's a super-low barrier to get started on your own personal extension.

lkbm··on My son pleasured himself on Gemini Live. Entire family's Google accounts banned
It doesn't require any technical expertise to set up--you click a button--unless you want to import into something else. I agree it should be more advertised, but I don't see how an open source tool would require less technical knowledge or be better known.
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