skysight-inc/HackerNews huggingface dataset:
A matrix multiplication is just a handful of multiplications and additions, which are very fast. If your CPU has FMA instructions, that will cut the number of operations approximately in half. If you do raw trig with angles and such, chances are you'll have a bunch of sin/cos/tan and divisions in your code, which are capital-S Slow. The same transformation might be 1-2 orders of magnitude slower than if you had modeled your transformation as a matrix.

They're easier to compose. Easier to reason about. If you have several transformations that you need to do in a row, you can just make one simple matrix for each step, and then shmoosh them all together with a great big matrix multiply.

Matrices have a tendency to collapse floating point inprecision. A 3D model will often be constructed in [-1.0,1.0] coordinates for xyz. The final camera space that your GPU draws will often have no coordinate greater than 10,000 or so. These are easily precisely represented with 32 bit floats. However, if you do a multi-step geometric transformations on them, you will more often than not blow out your floating point precision in intermediates. This means you need to do your entire transformation with doubles. On the other hand, if you're using matrices, you construct each matrix with doubles, compose your complete transformation with doubles, then convert the final matrix to float and everything is fine. When you transform the points of your model from model space into camera space, you'll use the matrix with 32 bit floats.

Good modern compilers (not MSVC) will generally do a pretty good job of optimizing a matrix multiplication to SIMD instructions. In the previous paragraph, you might think, "who care if I have to use doubles instead of floats?" and this is why. Floats are twice as fast as doubles in dense SIMD code.

GPUs will have first class support for matrices. You can just be like "here's my matrix bro" and the GPU will be like "thanks".

Unfortunately I don't know of a good way to learn the subset of linear algebra that programmers need to model the real world. The Gilbert Strang linear algebra MIT courseware is all well and good, but it really focuses on the needs of mathematicians. I feel like everything I know about linear algebra I just sorta picked up through osmosis over the years.
One of, if not the, first applications of the transistor was in missile guidance. China developed enough vertical integration and global consolidation in the chip industry to become a national security threat. Congress responded by allocating $280 billion to bring the at-risk aspects of design and development back to domestic soil. There is more nuance but that’s the gist.
Maybe the robo ambulance would have froze like the Cruise.
Everything that's supposed to happen will happen. If this mini-rant damages my prospects, then I wouldn't last long at this level anyway.

Nice name, btw. Classic song, still!
True, but being Catholic I can't help thinking that even though I don't think he cited it as an inspiration, the bible was a template on which his mythology is built. It's a monotheistic world with hinted fall from grace back in Human origins, angelic beings, a Satan analog in Morgoth. So you're right though, I should qualify that my saying he was writing a mythology in the Biblical style but culturally North West European.
gpt4 in bing but then I changed like 20% of the words
Funny you bring up cycling. In sf its the bikes when im walking that seem to be the most dangerous. The scooters dont go fast enough
This has been my sentiment lately. I purchased a Tesla last year (primarily to save on gas) and its been an amazing car. You raise a couple points that have been on my mind. The rare metal argument is a good one. I believe that battery disposal is sort of an issue at this time too?
Anti-theft features aren't anything to do with remote attestation, and this feature does not stop recycling the devices, it just means that only Apple can recycle them. Which would likely be true anyway due to how integrated the components are.
How about the common person being able to host without having to sign up for a "business" plan. Lookin' at you Spectrum for not providing the capability to manage PTR records in DNS without an artificial barrier and rent-seek.

Companies continue to encroach on what should be basic freedom to do network management. It's entirely intentional; to the point that I've about accepted there's a high-level of society push to enact as many barriers to reasonable liberty as humanly possible, all in the name of "Public safety" or some other transparent on further examination excuse.
> in reality we need degrowth and permaculture

Personally, I wholeheartedly agree. Do you see degrowth as a realistic possibility? How would this happen in today's democracies with economic systems relying on GDP growth?
I watched society collapse at Stansted Airport
Well it's a pretty good story surrounding meditation : what mediation can do for you, the philosophies about it, sounds kinda like magic, etc.

Which would attract story-lovers. And might lead them to approach it from the story-end first (rather than seeking some more solid to work with). Which could be a problem.
Any hypothetical sequestration into a fuel (as in the parent parent comment) would also require a power source, so the question goes back to low-carbon power!
Robotic head and neck surgery is routine at major medical centers all over. Da Vinci has been around for many years and it is human controlled.

I’m glad this patient was helped but there is absolutely nothing interesting otherwise about this.
How do people come up with such bullshit numbers? 206 billion Euros is more than 5% of German GDP.
Because you don't fully realize the connection between the high costs you don't like and the result of successful ambition and an influx of money making everything more expensive. You think you can have cheaper costs without anything else changing - the costs were somebody else's problem, not largely the fault of the successful businesses and lucrative jobs and the resulting monied demand.
UPI is absolutely free.

If and when it's charged then then you can say it's not free. Until then people should stop parroting lies. Really what a stupid statement!.
And some of the top grossing video games of all time have voice acting. The modern Rockstar and Naughty Dog games would be less attractive and have much less emotional impact without the characters coming to life via voice. Character models help sell games, too. Sure, voice acting isn't required for all genres and many don't need motion capture, but if they didn't add anything studios could save a ton of money by cutting it out. It turns out not everyone wants to play indie platformers or sandboxed builders.

You could of course use non-union voice actors, but it's pretty easy to tell when games use random people to narrate or voice characters. It often harms the product.
Wow, I'd love to see the emulator
Exactly. Everyone knows exactly why it was worded like that and I don't understand why anyone would even pretend to play dumb.
What kind of question is that? Of course I wouldn't be happy. Would you? What does me getting out of the car have to do with anything?
Very clean design, easier to understand than Rust (partly because better explained). Maybe shows the outlines of a clearer way to think about parallelism, which I hope will be fleshed out by further design moves, some of which are previewed in the last few paragraphs.
There's a good chance EVs aren't the best long run solution. But, right now, we don't need long run, we need immediate, short term solutions to the problem that we've got right now which is the need to keep people employed during the transition which, since people in many countries tend to live outside of transportation hubs, means keeping them in cars for the time being. EVs allow the use of non-fossil fuels to power that auto transport.

But, where you're definitely right is that we need to be exploring every avenue. No one can really predict what technologies are going to work best.
Well, maybe a more modern approach to a hackable watch is

https://github.com/sharandac/My-TTGO-Watch

I stumbled over this, while I was researching for building my own DIY iPod Nano 7G with the LILYGO T5 E-Paper dev board

Product: https://www.aliexpress.com/item/1005002474854718.html

Code-Repo: https://github.com/Xinyuan-LilyGO/LilyGo-T5-Epaper-Series

This would be an amazing iPod Nano 7G replacement, if I had more time and more skill in arduino stuff ;)
It was inevitable that it would fall into the hands of consumers (leaked or released), so it's better that we deal with the consequences rather than putting it off.
TL;DR: a stop on I-5 has superchargers powered by a Diesel generator if there isn't enough power to power them all
I absolutely love that Texas has managed to convince their citizens that the states' problems are definitely most certainly all those California transplants (that they encouraged to immigrate) and not the states own self inflicted bs.
The prices have already gone up.
However, unlike the Bay which artificially restricts new builds and has the added benefit of that prop that locks property tax rates comically low Texas has neither.
There's an abundance of land to build in almost any direction.
There isn't a cancerous NIMBY voting block that prevents new high rises.
And more importantly, property taxes can go as high as or low as needed which keep downward pressure on home prices.

The unfortunate thing is, there is plenty of land to build in San Francisco. What there isn't available is the political will to turn those sprawling hills of nothing into new homes or to upzone areas currently.

I love San Francisco and think it has immense potential, but the place has become awful in terms of its CoL.
Show HN: A gem that shows jobs right in the command line
It scrapes Ruby/Ruby on Rails jobs from six sites:
Gorails,
Weworkremotely,
Ruby on Remote,
Ruby on Rails jobs,
Rails Hotwire Jobs,
WeAreHiring,

and displays them right in your terminal!

The scraper lives on: https://github.com/binarygit/job_scraper

Please comment other sites that you use to look up Ruby/ROR jobs!
ChatGPT prompts, shortcuts, Text-to-speech, PDF and more
How could it be inoperable if a human controlled robot managed to remove it?
Hey! This is version 2.0 of ShortcutsGPT, now with 7000+ prompts, text-to-speech, PDF, shortcuts and more ... any feedback would be appreciated :-)
Shocker and I'm not seeing any such issues with Waymo cars and or am I missing those headlines?

Waymo has been at this game and working on their tech since around 2007.

Cruise definitely not as long ... no robo AI car company should be allowed on roads until they have proven themselves like Waymo has .. it's irresponsible and proving deadly like Uber's rush to do the same. Start-up bros killing it yet in this instance actually killing people... ridiculous ... no scruples/morals!
I had a bank account emptied by the US govt.

The California state board of equalization (SBOE) decided that since I hadn't filed and paid taxes in Cali for a few years, that they'd just empty one of my bank accounts to collect on me. Why didn't I pay taxes? Well, I moved to Vietnam and didn't know that I still had to file a $0.

Zero warning or notice. They just emptied it. Bank even charged me a couple hundred for this 'service' on top of it.

Even after I cleared up the issue with them via my EA, I've never gotten the money back. Luckily, they hit one of my bank accounts that had a small amount of money in it, enough to not get dinged fees by the bank for them holding my money. I was only using that account to transfer money back and forth to Vietnam.

So yea... I'm with you.
I'm surprised / disappointed this got so little attention on HN.
As I understand the daVinci device is not really a robot in the sense that it works autonomously. It’s a precision waldo setup with a surgeon in control.
This proposal is itself a nonsolution and distraction. You're not going to pull 7 billion people along with this.

We saw what a fairly massive reduction in consumption looked like during the pandemic. It basically put CO2 levels back to what they were in 2016. That's no where nearly enough.
https://archive.is/tjV6E
In Copenhagen, scooters can only park in designated areas.

Unfortunately, those areas are so small that you can be stuck with a scooter that is impossible to return, because the GPS tracker doesn’t update fast or precise enough.

And unfortunately, people still dump them on the side of the road if either they go out of their allowed area, or run out of juice.

Considering you can rent a car at a lower rate per minute with less fuss, I think these scooter companies just have a hard time accepting sunk cost.
That is not true in the least. A hypothetical three-genetation extended (and frankly, quite large) family of 25 in Bangladesh emits roughly the same amount of CO2 as an average American.
> so no way was it running in 4 megs in the early 2000's. You are exaggerating.

No, I am not. I used to do that with at least 2.2 kernels. https://tldp.org/HOWTO/4mb-Laptops.html

But besides, I know 4MB in 2000s was low enough to be awkward. The point is that _it could_. NT in 93 could not even boot with 8MB RAM, and then it was definitely not low.
Well, I find Gimp unusable because I learned PS hotkeys 15 years ago and whenever I press them in Gimp it does random things. Photopea is nearly a 1:1 mapping of PS. Can't comment too much on feature parity, I don't do anything too crazy. Some cropping, expanding canvas size, maybe desaturate or adjust levels, use layers and masking. Magic selection. Maybe some content-aware fill. No artist/painting/fancy brushstroke stuff though.
I wish sol.exe still opened up Solitaire. The original one.
Assuming the Ambulance driver was competent, the good reason was likely the patient not being secured and thus they wouldn’t have left for a significant fraction of those 90 seconds in either case.

The cruse driver could still have slowed their exit by a few seconds even without being a significant obstacle. The issue is ambulances encounter a lot of cars on the way to and from an accident, so a few seconds per car can add up to a significant delay overall.
Cool project! Dovetails nicely with a recent project of mine.
CO2 levels have gone up by a third just since I've been alive.

You don't need to be a rocket scientist to work out that that's an enormous problem that must be solved. To be honest, with the house well and truly on fire, who cares about hypotheticals like lithium leaching.

I feel the graphs on this site are underselling the problem. The scale should be "last 60 years", "last 30 years". The changes we are making to the environment are profound and speak for themselves.
Against the organizers, probably, for organizing a large event with easily foreseeable risks that were not adequately mitigated.

Waivers and disclaimers are not a defense against negligently creating a risky situation.

Note I'm not saying I endorse this, just expecting it to happen based on the history of US civil law.
Yes, exactly! Nothing is bulletproof and you have to do something. There Ain't No Such Thing As A Free Lunch. You can't depend on anyone to figure out a low-risk plan for you, not even Browne!
Well, to be pedantic, it's not like NT would be usable with 16MB either; I remember the desktop taking 5 minutes to show and the HDD constantly thrashing.

EDIT: Actually, I just checked, and NT 3.5 opens in around 8 minutes and uses 20MiB of swap, when booted with 12MB.
These aren't the kinds of things where evidence is readily available. If you have a reputation to stake on certain claims, that makes me more inclined to give you the benefit of the doubt.
>If we could just agree to not do that

Just forget about that. If you don't, I'll take the google software engineer salary and build it.

The issue is not technological, it's a natural outcome of how people work on and individual, and on a societal level. Regulation is the closest that can affect this situation, but as it turns out, no large entity has the same goals as "the people" - hence, I'm not holding my breath. I am using Firefox and other FOSS software though, and contribute back what I can, donations, bug reports. It's a nice privilege.
What companies were paying these comparable-to-the-Bay 2012 salaries? I left Texas around when you moved there and was not finding "almost comparable" salaries to the Bay Area in many places at all. It was a big part of why I left - very few of my costs increased anywhere near as much as my salary did, so I was able to save and invest far more money per year.
Do you live in Texas?
Did you mean to post that on a different thread?
The chance of being caught would be far too low. Police have better things to do.
It should have been phrased, "your return on investments can be the sole source of your retirement wealth."

I think what they mean is that the bulk of your wealth will be the capital that you put into your investments with a reasonable amount of interest/capital gain.
The secret is apparently that the site operates some local diesel generators at holiday rush periods to backstop the grid.

Isn't that exactly what we want though? You draw the clean power to the extent practical and then burn the junk fuels only in extremis. That allows for greater uptake of EVs on the whole while minimizing impact. What's the alternative being proposed? Sell fewer EVs or limit how much they can drive over holiday weekends? Who is that helping?
Yeah, those are all great benefits. It grows SO fast and with model lamination/bonding it makes a great material.
We can argue all day about whether Cruise was in the wrong here, but the fact is, with autonomous cars becoming more common, this kind of situation is going to happen - an autonomous car blocking a vehicle in an emergency - and protocols/regulations need to be in place for handling these situations.
I've lived here (in Austin) for three years. My partner and I decided to move to smaller city in Washington state come November. There is a lot of things to like about Austin (and even Texas), but as someone who was born and raised in the Pacific Northwest, I don't think I can live here longterm.

It's not just the heat, but there's definitely more unnecessarily oversized vehicles on the road with only a single occupant driving. I'll admit it may be all in my head and I only notice these things because I'm in a different environment, but it seems many people here don't user turn signals, run red lights, and are regularly looking down at their phone while driving their truck or SUV, all while driving 10-15mph over the speed limit in a residential area. /rant
DMT only lasts 10-15 minutes, and will be so overpowering, glorious, and delightful, that one can only compare it to losing one's virginity, or being born again.

Mushrooms and LSD are way too longer/overrated and I fear those who haven't further explored the latent chemical/consciousness space misrepresent the dimension that, quite frankly, BETTER chemicals have to offer.

Dont do shrooms, 4acoDMT is far superior.

Dont do acid( edit: alone for the first time), at least not without taking a xanax (edit: read: or being in a well-intended state of mind) first.

DMT will sidestep all that.

iykyk, yk?
I believe it was mocking a redditor that has been spamming /r/emacs with short how to videos with somewhat complicated ways to do super trivial things.
I'm a psychedelics enjoyer. imo, the only good knowledge of the science we currently have stops at the level of chemistry. We know what these molecules look like. Sometimes we have a good idea of what their action in the body is, including the brain. After that, imo, the "science" breaks down. In large part because it's so particular to the individual. I don't think we yet have a rational framework for radically deconstructing and reconstructing something so idiosyncratic as the subjective experience. Not one that well transcends the borders of individuality and intersubjectivity, that can be readily applied by all people (or even all types of people). I think we solidly enter the realm of philosophy... to my mind, the employment of psychedelics is most profitable when seen as a different facet of the art of living with yourself well.
It's a myth that they pay low taxes in Texas. For most people the taxes are lower in CA (somewhat due to Prop 13).[0]

[0] - https://www.foxnews.com/politics/california-taxed-less-texas...

[1] - https://www.independent.co.uk/news/world/americas/texas-cali...
I spent some time in southern California as a software dev contractor during the dotcom heyday of the 90s. I was renting in one of the more affluent areas and it was clean, had great venues within walking distance, great weather, people in general didn't seem to have gigantic political sticks up their asses, etc. It also had horrible traffic on the highways and cost of living was easily about 2x as much as living in Austin in the same era.

Overall, I enjoyed the experience in California - probably isn't the same these days though.
I love PG, but things like this make me appreciate Mongo's compaction and replication which can run interleaved with reads and writes.
California bill SB 58 just passed out of the “suspense file,” and actually has a path to pass.

Summary
An act to amend Sections 11054, 11350, 11364, 11364.7, 11365, 11377, 11379, 11382, and 11550 of, to add Sections 11350.1 and 11377.1 to, to add and repeal Section 11214 of, to repeal Section 11999 of, and to repeal Article 7 (commencing with Section 11390) of Chapter 6 of Division 10 of, the Health and Safety Code, relating to controlled substances.

Would move forward access to a subset of these substances in California.

Full text of latest version here: https://legiscan.com/CA/text/SB58/2023

I am personally strongly in favor of this bill, and more broadly decriminalizing a wider variety of drugs, and focusing more resources on research, medical uses, addiction prevention, treatment and prosecuting related secondary crimes like robbery etc…

I do worry about folks who perhaps have experienced the legal weed phenomenon stepping up to DMT or large mushroom doses and not being prepared. I know this is just decriminalizing, but access follows. Ultimately I believe it is the individual choice and the benefits outweigh the damages, but I am not certain how it all plays out when the real numbers are in.
Electric cars are a terrible representative of electrification. When people talk about electrification as a climate mitigation a big part of that is the significant increase in the energy efficiency of electric systems. For example a heat pump in a well insulated house will significantly decrease the energy consumption over a gas heater. Likewise delivering electricity to a saw mill will yield power with much more efficient energy use, than an on-site diesel powered machinery.

Now electric cars are definitely more efficient than ICE cars (despite being heavier; excluding today’s monster trucks like the electric Hummer). However a the transportation needs of a significant majority of people could be much more efficiently solved with public transit, even if that public transit is diesel powered. This is why climate policy experts quite often point out how electrification of private cars is generally regarded as a rather poor (and expensive) climate solution, next to other options.