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lkbm

4,542 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 Electrification Could Cut Global Energy Use in Half
> A lot of heat pumps don’t work well below -20F / -30C.

I mean, sure, and a tiny one won't work for a mansion. If you're somewhere that cold, you choose a heat pump that works in that temperature range.

lkbm··on Electrification Could Cut Global Energy Use in Half
I'm very confused by the various "heat pumps can't provide enough heat" that keeps coming up in the comments here (less you than others; it's a fine question). Heat pumps can output as much heat as any other heat source. Just pick a heat pump based on BTU that matches your alternative. You can size it up more if you want. You home's electrical limit is probably at least 24kW, which typically gives you plenty to power a good sized heat pump alongside everything else.

If you go heat pump + heat pump water heater + electric washer and dryer + induction stove + electric car, you might want to upgrade, depending on your situation.

lkbm··on Backdoor in Claude Code for VS Code extension on the Cursor Marketplace
The person at the top refers to Anthropic as "Misanthropic". It seems unlikely that they're also intentionally lying about this to protect Anthropic's interests.

Your conspiracy theory needs some work.

lkbm··on Read the letter the FBI sent MLK to try to convince him to kill himself (2014)
Well, a micro-transaction on your credit card isn't a great solution, since the base fee is something like $0.10 per transaction. You'll want a system to fill a low-transaction-fee wallet and then distribute from there.

Youtube Premium is a pretty good system. I pay $16/mo, and 55% of that gets distributed to creators based on my watch time.

lkbm··on ‘You Are Done’: The letter sent to King by the F.B.I (2014)
I mean...I think people who oppose GMOs, permitting reform, hydroelectric, and nuclear power do care about the environment, despite actively working against it. People who oppose developers building more houses do want more affordable housing, despite actively working against it.

People, including individuals, aren't single-minded, rational, or scientifically literate.

In the case of anti-fascism, many on the left earnestly believe that a far-left candidate is the solution because their bubble tells them that their views are dominant. After all, they and many of their friends aren't excited to vote for the moderates, but would vote for someone more left.

I'll sacrifice a lot of things I care about for leadership that would shore up democracy (I'm not sure how, though fixing redistricting is a big one), but it's seen as normal and admirable to refuse to compromise.

lkbm··on Is my data used for model training?
It's not a privacy policy. The line I quoted is literally the majority of the text on the form, directly above the submit button: https://downloads.intercomcdn.com/i/o/lupk8zyo/1486988786/c0...
lkbm··on A farewell to Arc browser
it wasn't when I tried it a year or so back. It told me to report bugs to Discord, but Discord crashed immediately in Orion. I think it turned out to be uBlock Origin or something, but still was a very frustrating experience. 1Password also didn't work correctly.

Obviously they can't control extensions, but if popular extensions break your browser, and you don't offer a good native replacement, it's a bit of a no-go.

This was a year or so ago, so maybe it's better now.

lkbm··on Wikipedia's Cleanup of AI-Generated Content
If I fix a typo, I've edited an article. I used to search for common misspellings and fix them. It was useful, but very different from having actually written anything.

Same for adding an article to a category or adding links between en:Albert Einstein and de:Albert Einstein.

EDIT: For your consideration, here's his contributions: https://en.wikipedia.org/wiki/Special:Contributions/Ser_Aman...

> 2026-10-27T06:18:49 diff hist +20 Parsifal bell →External links: - add Commons link current thank

> 2026-10-27T06:18:04 diff hist 0 Parsifal bell →Construction thank

> 2026-10-27T06:17:08 diff hist +4 Parsifal bell →Need thank

> 2026-10-27T06:16:20 diff hist −23 Lotte Lehmann Removing from Category:Lohengrin not defining using Cat-a-lot current thank

> 2026-10-27T06:16:20 diff hist −23 Heinrich Lefler Removing from Category:Lohengrin not defining using Cat-a-lot current thank

> 2026-10-27T06:16:19 diff hist −23 Wilhelm Hauschild Removing from Category:Lohengrin not defining using Cat-a-lot current thank

> 2026-10-27T06:16:19 diff hist −23 Ferdinand Leeke Removing from Category:Lohengrin not defining using Cat-a-lot current thank

> 2026-10-27T06:14:55 diff hist +52 Maria Müller added Category:20th-century Czech women opera singers using HotCat current thank

Again, useful, but obviously very different from writing (or even modifying) the contents of an article.

lkbm··on Is my data used for model training?
As noted in the article, the feedback form says:

> Submitting this report will send the entire current conversation to Anthropic for future improvements to our models. Learn More

So I'm not sure why this is being posted to HN. This is nothing new, and nothing not known by anyone who has ever provided feedback.

lkbm··on Postgres 19 delayed after AI reviewers find more bugs than humans can fix
Yeah, I don't understand how this can even be a question when we're finding an unprecedented number of bugs that are decades old.
lkbm··on Call Center Jobs Are Declining, but 14,000 Calls Show Humans Still Outperform AI
I've gotten automatic refunds from Amazon bots. (I also got automatic credit from Lyft, but I consider that a failure because I wanted my money back.)
lkbm··on Apple's new 'Switch to Safari' campaign details why you should ditch Chrome
> Safari has the most obscene monopoly of any browser ever. IE 6 came pre-installed on windows machines, but you could always install Mosaic or such.

Mosaic was a fair bit earlier, but yeah, I ran Netscape 4 until Mozilla M18. Never used IE as my main browser in many years of Windows use.

EDIT: I guess Netscape 4 and Mozilla M18 were both pre-IE6, too, but still Mozilla/Firefox for the IE6 era.

lkbm··on Deloitte falsified documents to evade tax on Abramovich's wealth
Politically, get rid of Trump is my top priority, but hopping into discussions that aren't about American politics with "hey, did you know Trump is bad?" doesn't advance getting rid of Trump.
lkbm··on The gap in shared understanding of LLM capability is widening
MENSA also selects for people who want someone to certify their intelligence. High iq people who have done a lot have much less desire for a MENSA membership. We should be looking at the non-MENSA members with high iqs and seeing what they're doing.
lkbm··on Deloitte falsified documents to evade tax on Abramovich's wealth
I hate Trump, but I don't see how Trump's corruption is relevant to this discussion. Are we supposed to comment on every story about someone doing something bad with "Trump's even worse"?
lkbm··on Deloitte falsified documents to evade tax on Abramovich's wealth
> Most institutions (especially financial) have strict document retention policies to protect themselves from situations like this. It's not shady – just a way of limiting liability.

Yup. With every data breach, HN is full of (correct, imo) comments about how tech companies should treat private data as a liability and prune it aggressively.

You go look at mature businesses and you'll find that they do exactly this.

lkbm··on High Diesel Prices Bankrupted 16 Trucking Companies in Just 30 Days
Noise is also a form of pollution we never seem to price in. You can hear trucks on the highway from several miles away in many cases, and I was regularly woken up by very loud construction vehicles going by my house in Austin around 5am.
lkbm··on Opus 5.5 agents discover two room-temperature magnetic semiconductor candidates
A room temperature antiferromagnetic semiconductor would be a big deal (much faster memory with much less energy usage or waste heat).
lkbm··on Opus 5.5 agents discover two room-temperature magnetic semiconductor candidates
> There is nothing special about a room temperature semi conductor, your CPU, RAM, and storage drives have worked at room temperature for decades…

This is a magnetic semiconductor (and antiferromagnetic). All non-experimental magnetic semiconductors require cryogenic temperatures. If this pans out (works, cheap-ish to produce), it could mean significantly faster memory, with significantly less energy usage and significantly less waste heat (and thus, even less energy usage).

Obviously it's very far from "panning out", but "room temperature" is not a given here. It's not normal, and it would be a huge deal.

lkbm··on Automatic Transmission – a data-privacy study of connected vehicles
Why would they care about how you drive other than safety? Who are "they" in this situation?
lkbm··on Why don't more developers “use the platform”?
fwiw, your comment would almost certainly have positive karma if you had left off the final paragraph. Asking for sources is popular here. Grousing about how you're oppressed by the dumb voters on the site is not.
lkbm··on Our AI Midwife
You're complaint is that he's in favor of considering both pros and cons of things, rather than just the cons?
lkbm··on Workers KV Instant
It's not fully clear to me what the use-case for this is at this price point (reads are cheaper, but writes are 20,000x the price, storage 200,000x). Feature flags or something? It's gotta be small, rarely updated, and important to be Very Fast, and I'm unsure what that would be.

I'd love to hear from people how they're using it or planning on using it.

lkbm··on America.gov
Okay, but I don't understand what you're getting at with them not learning? They acquire more information, get better at providing accurate and relevant information, and acquire new skills. What is the learning they're not doing?

Maybe a human should be available as a backup or something, but not because LLMs don't "learn" -- the system seems to learn in all relevant senses.

(I'd also object to the no accountability, but another subthread is already on that.)

lkbm··on America.gov
> a bot that doesn’t learn
lkbm··on America.gov
This is one of the best examples of the absurd cynical conspiracy theories that abound these days I've seen.

Law exists the way it does for a lot of reasons. It's not a government make-work program.

lkbm··on America.gov
We shouldn't use an LLM because...LLMs never improve?

This seems like a great source for domain-specific RL, but even without that, we can expect there to be higher-quality LLMs that can be trivially swapped in within a year, if not a week.

lkbm··on America.gov
Useless, perhaps, but generally say true things rather than false things, in my experience.
lkbm··on I switched to Brave
There are Firefox forks out there. LibreWolf, Pale Moon, and WaterFox are the bet known. Unsure which, if any, are still active.
lkbm··on Allow babywearing carriers on planes
This isn't about car seats, it's about baby carriers, and it's not about protecting you in a car crash:

> When our babies were little, carriers were massively helpful in flying. The baby likes it, and your arms are free.

> The carrier means the baby can sleep wherever we are, and I can have my hands free. If you can breastfeed in the carrier, even better because the baby can eat as you’re navigating the airport, etc. Carrying the baby centered on your body is easier on your back than carrying them in the carseat. Plus it’s good for walking / sightseeing at your destination.

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