skysight-inc/HackerNews huggingface dataset:
Interesting take, but SwiftUI and Combine are really bad. They claim ‘functional programming’, but there’s so much (leaky) magic involved. The sub par automatic code generation yields slow and laggy experiences. I don’t think Apple has any plan to improve this beyond ironing out obvious bugs and waiting for natural performance yields to kick in.

It is bad enough that it reminds me of Carbon and the related legion of missteps that hurt Apple badly some 20 years ago and pissed off a lot of loyal developers.

Honestly, SwiftUI combined with Apples now complete market dominance is enough to make me reconsider my career path.

Just because they’re so big doesn’t mean they can do no wrong and several of their recent technologies have been regressive.
I’ve tested this on an extremely steep block in seattle. This was about 8 years ago in a plug-in Prius. Distance around the block was about 0.25 miles, one side generating a lot of range, the other side eating it up because I’m going back uphill. On each cycle, I would lose an extra 0.1miles of range over what I experienced on flat ground.

It’s actually very interesting to me that while driving that car, I developed a sort of feel for how trading potential and kinetic energy affected my available range, and I had an imaginary boundary drawn in my head that defined all the places where I’d be able to make it home “for free” that was kind of like a topo map. In particular, if I managed to crest the hill where Canlis sits on highway 99, I knew that despite all the ups and downs in between me and home, I’d be able to make it there without having to fire up the gas engine. :D
It dropped from 500-600 ng/m3 in the 1980s to 8 ng/m3 in 2018. Current exposure is from old residue attached to soil dust particles.
It's interesting as a thought, but I don't think it's likely to be large-scale practical.

Suppose you wanted to run a normal electric train up a mountain. It would certainly take a decent amount of power but not so much that it would be a big challenge for a city-scale power grid. So far you're not yet talking the scale of power where storing it would really be interesting to a grid.

One option to store more power would be to make the train much, much heavier. Sounds simple enough -- fill all of the cars with concrete and now hauling it up the mountain will store a lot more power. However now the rails and the trains themselves will need to be far sturdier than a normal railway, and will wear out quickly.

The other option will be to simply scale up -- start the day with a hundred trains in a rail yard at the bottom of the mountain and over the course of a day move them all to a rail yard at the top. Now you have successfully stored a decent amount of juice.

But hold on a minute... you've now built two large rail yards, meaning you'll need a lot of relatively flat real estate at both altitudes. How about instead you just dig a hole on each side, called it a reservoir, and put a pipe between the two? Certainly it must be a lot easier to store and move mass in the form of water than it is in the form of trains!

That is why I don't see much potential in rail-based storage: if you have the geography to build one at-scale, probably you could build pumped hydro there cheaper. Even if you were in a water-scarce area where you would need to enclose both reservoirs to avoid evaporation loss it still sounds simpler to me than building and maintaining a hundred heavy trains would be. Also, routing a pipe between two reservoirs is a lot more flexible than building a railway.
>I don't know what the "killer app" for AR is really going to be.

I wonder if it really is a navigation HUD. For example, i’d love this, with some auditory interface, for things like cycling and motorcycling and also probably normal driving too. Safely presenting salient information in the same depth of focus as the road, and giving me tools to interact with it with voice, would be good AR in those situations, and i’m in them pretty frequently.

Is that a big enough market? Will it inevitably descend into the inverse of They Live?

we’ve given the hardware a shot at least a few times now and wearable glasses tech has not yet been useful. But i can’t think of anything else.
Gravatar competitor
Let/const behave more the way you'd expect in JavaScript. They came about as part of the language shift in 2015, along with a lot of other conveniences. Many of JS's warts are less of an issue if you write modern code.

I guess there's nothing technically wrong using var, but there's no reason to use it over let in almost any setting, and a tutorial that starts you with var might be outdated.
How to Prepare for a Lengthy Bull Market
Right, but that's about maintaining pressure and supply when everyone wants a shower at the same time in the morning, not about harvesting the energy of it all flowing downhill.
This sounds like you didn't even try to look at this from their perspective. What reads as narcissism to you reads to them as a necessity for cultural survival: is this a good way of dealing with the perceived anglophone takeover? are their fears unfounded and will Quebec still be the thriving French-speaking province it has been, a thousand years from now? I know neither answer to these questions, but I can on paper understand their sentiment: they are the only French speakers on their continent (barring the pockets in louisiana or French Guiana), and neighbours to the biggest cultural powerhouse of the last 50 years. Learning English to get better job opportunities seem like a no brainer for the majority of their youth, and leaving to the US is a dream for many of them. Their film producers, musicians, writers, and other artists are deeply talented in their own right, yet struggle to be known outside of Québec or francophone Europe. Who wants to be stuck in that market ? Some bear it, but others cater to the anglophones to benefit from the americans who export their culture to the entire rest of the world. It's nearly impossible to make it in the western world in any other way. If the Chinese ever achieve cultural rayonance as well as the Americans have achieved, or if spanish suddenly gains a much higher rate of usage in the US, I am confident thousands of anglophone will change their tune and opt a position much closer to the québécois.
The answer to this particular problem is Georgism and a Land Value Tax.

It strongly disincenctivises speculation and incenctivises productive use. It ensures that a person claiming ownership of land makes more productive use of it than the cost of depriving society of use of that land. As a cherry on top, the income from LVT can be used to reduce taxes on labour, or simply to be given back as a citizen's dividend.
yeah, they are already leaving in droves.
Given we don't even use the scientific method to determine the best subjects to teach, I don't think there will be a push to teach using the scientific method in real life scenarios.
Range extenders exist. The 2014 BMW i3 offered one as an option. But now that batteries can provide 200+ miles of range there's less need for them and most EV companies have stopped making them. (Of course this hasn't stopped people from building their own.)

https://www.autobytel.com/car-ownership/technology/what-is-t...
A few days ago I tried to build linux kernel for RV32I but had no luck getting it to run in qemu. 64-bit works. asking around basically resulted in everyone telling me that nobody cares about rv32 linux and it is unsupported and unmaintained. so what use is in rv32i?
housing is most profitable when there is the least new construction.
>otherwise it would be popular and this kind of law wouldn't be necessary

I think you are missing the full picture.
What I mean there is no fair free market of art, for example can my country with 20 million population create cartoons to compete with Disney? Of course not, Disney creates the generic american culture stuff, and then they can dump it on small countries and make a bit of extra profit from ads and toys.

Anyway I am not debating what laws are fair or not, just mentioning there is no fair competition and the best music, TV show or movie wins. I would personally tax foreign stuff a bit and use the money to support local production.
So, there are things I disagree with inside the article (rent control and government-built housing have both been tried, in many places, and have not gone well), but the basic thought in the title is spot-on. We have learned nothing from (and fixed nothing since) the 2008 Fiscal Crisis. We are headed for a new one.
I don’t think this is right. I just did a test with a text file and Windows not only found a word only in the title (not in the document text), but also highlighted the title match in the results.
Aliens Wouldn't Need Warp Drives to Take over Entire Galaxy, Simulation Suggests
Further reading:

https://www.eff.org/document/memo-uc-regents-re-patent-licen...

What would people call this. What is this LLC actually going to produce, besides licensing revenue or litigation.
Fwiw, I went to a public middle school where we balanced checkbooks, went over bank accounts and taxes. I also went to a public high school where we expanded on the above topics along with stock investing and retirement accounts. I used to think these things were the same for everyone, but as I get older it seems like it might have been unique to small Iowa towns.
Damn dude, I've seen you talk like this a few times over the last few months.

You gotta chill a bit. Your intelligence doesn't determine your self worth.
> Profitable means it has to grow faster than inflation or wages.

That is not what profitable means. Returns on investment in housing consist of:
1. rental yields, and
2. capital gains (i.e. change in price).

You cannot say whether housing is profitable or not (or affordable, for that matter) only by considering number 2.
Quite frankly I don't think any of you in this thread have any idea what you're talking about
Waymo has published detailed safety performance data of their Arizona operations: https://waymo.com/safety/performance-data

You can read their other safety whitepapers in https://waymo.com/safety
Wonder if the name is a Deleuze/Guattari nod.
NC State and University of Florida have nuclear reactors on campus as well. I bet others do as well.
> I don't think it'd be too much of a stretch to also suggest that it'd be bad if all employers decided that their workers had to be butts-in-seats 40 hours (or more) per week, no exceptions.

Well, yes. That's not happening, though. My point is that I see people essentially claiming that it's immoral for any companies to not permit remote work, and I disagree with that.
> Here in Australia the government is talking about letting young people access our equivalent of their 401k to afford a deposit on a house.

We do that in Canada. I don't think it has helped with the affordability issue at all.

https://www.canada.ca/en/revenue-agency/services/tax/individ...
git --stop --being --stupid
You get sparse point cloud from LIDAR sensors, not accurate 3D maps. This is the main reason why some people think LIDAR may not work well (mostly, only comma.ai and Tesla folks).

Vision can also get you 3D maps, either in active manner (IR floodlight or structured lighting) or not. I will reserve my judgement until see more from either side.
I've heard that you can alleviate this by adding a bit of vinegar to the soaking and rinsing water - it lowers the pH thus inhibiting the growth of most of the bad bacteria. For the article being discussed it seems like he's intending to cook all of the sprouts he's making so it should be quite safe without using any vinegar.
Kats: One stop shop for time series analysis in Python
I’ve an iOS app I wrote a while ago which provides the functionality of game audio middleware (something like FMOD I guess) basically for sounds placed at locations in the real world: tracks the users’ location and orientation relative to all the sound sources and spatializes the audio based on that. You can make and layer together sounds that follow coordinate paths, sounds that ‘wake up’ at/after times, are triggered/stopped by proximity, do sample accurate playback at different pitches/volumes for each ‘grain’/chunk (as far as possible on iOS devices), randomise order in a couple of different ways/follow looping playlists for variation and so on. It uses standard ideas nicked from game audio to save on the download/disk/memory size of sounds (though there is obv. trade off with CPU/RAM and perhaps other OS stuff going on I don’t understand). It’s basically kind of an amateurish game audio engine overlaid on the ‘real world’. It’s likely got loads of holes I haven’t detected/am unaware of in the code, probably poorly structured/commented/badly named functions/variables and so on as I am primarily a guitar teacher/music producer/sound designer for
my ‘day’ job and it’s the first thing I’ve written in Swift/really just an experiment to see if I could get it working, but I’m kind of wondering what to do with it/what it might be useful for… I made a fully functioning demo. that is a historical recreation of an area of the city I live in with lots of evolving/generative sounds in it: eg. horse’n’cart trotting past, blacksmith, pubs, trigger zones for a narrator voice/music playing back ‘2D’ etc etc …I don’t really know what to do with it now… I think it might be sim. to ‘Microsoft Soundscape’, but I’ve not actually tried their app yet… Do you think anyone might be interested if I put it on Github? (…never used Github, though I used SVN/other CMS as a sound designer on games before… though I know it has a social component…) I guess it’s trivial for most ‘proper’ programmers to make something sim. as it just uses the Apple native API/swift functions (sorry if this is not the correct terminology)/as low level as they go on the sound stuff anyhow, nothing custom?… The sound ‘definitions’ are all XML/.plist basically at the moment, so it’s not user-friendly for sound designers/musos/general public, though I could make some sort of graphical front end that generates the xml for it and uploads sounds etc, though I know nothing about network coding and it looks scary!!
I guess Apple could come out with some superior system tomorrow… Anyhow, if anyone reading this is at all interested/has any advice (even if it is to get knotted! :P) that would be gratefully received… Apologies for the overly long and spammy post…
Malthusian conditions keep me up at night.

Most countries birth rate falls off as they become more developed. There’s estimates that the world population will stabilise around 11 billion. I don’t think there’s any theoretical reason why high quality affordable high density housing is impossible.
> Smarter folks have just gone for the one or two year cliffs

Four year cliffs are much better for employees. Shorter cliffs will cost people a lot of money if the valuation shoots up.
I've done it, I realized I wanted to keep being an IC but still have promo/comp growth opportunities, and only some companies do that well without requiring you to hop onto the mgmt path.
You seem already aware that your "overly critical" attitude is somehow mismatched with what you do value. That's the hard part. "Successful people are good at working with others" - i.e. there's something valuable and worthwhile about others, or why work with them?

Many people will push you around if they can, like opportunistic bullies. It's similar to brownian motion, with people filling any gap you leave (like if when waiting to turn when driving, you are too hesitant, many people won't let you in).
Is it rudeness, or just human flocking behaviour? The answer is to take up the space that is yours. This is a better defence than misanthropy.

Being bullied for years can distort you own natural flocking behaviour.

Some people are smarter than you, know something you don't, or have experiences/perspective to see something you haven't. By not noticing this in others, you miss out on all that valuable stuff.
And, of course, the mirror image of the terribly stupid argument that if there isn't a criminal trial, no assault could have occurred is the argument that if the accused doesn't win a suit for libel, the accusation must be valid.
The consequence of all this: Websites, apps and advertisers providing consumers with everything from news, games and consumer goods make less money selling ads and have to fork over more money to exchanges and other intermediaries. According to industry studies, ad intermediaries take 30 to 50 percent of every trade. In other words, when your local gym buys $1,000 worth of advertising on a local news site, the exchanges and other industry players can take $500 of that, leaving websites and apps with just half. Who pays the price? Again, the consumer, through things like more expensive gym memberships and news subscriptions.

Thank you so so so much, Ms. Srinivasan! You are very courageous for fighting a Goliath! Keep fighting the good fight!

And in case you need more cheering up, here's something else: https://www.youtube.com/watch?v=KxGRhd_iWuE
Ruby 3 is like 10x faster than it was in 1.8.7 when I started using it.

That still doesn't make it a speed demon. But it does make it 'fast enough' for me.
The problem in Australia in particular is that you're running out of land. The four major cities are surrounded by water and nature preserves. As population increases, demand runs up against a very inelastic supply. The only policy solution would be to strongly emphasize dense high-rise development.
Well, that's the purpose of "reset". You explicitly ask the system to delete whatever uncommitted changes you had.

If you type in "rm -rf ." there will also be no "warning" about what happens next…

I for my part don't like systems that after giving it a command very explicitly asks me whether it should really execute that command. "You just pressed the button to delete those files. Do you really want to delete those files?" "Oh, no sorry. I'm the operator of this system but I press buttons randomly just for fun. Actually I have no clue what I'm doing. Thanks for that pointer! Please ask me also the next time, as I'm not going to remember what this button does. In fact I have no clue at all what I'm doing." Dude…

Git is not a backup tool. (Even you could use it as such).

If you need a backup, make a backup.

I'm aware of the fact this this comment may sound impolite to some. But out of my perspective it's a feature and not a bug that unixy systems traditionally don't ask stupid questions after you told them to do something. It's an attitude of respect towards the operator: The system assumes that the operator knows what he is doing. Asking questions in the style of "do you really, really want me to do what you just said" is on the other hands side just extremely rude against the operator—as the systems assumes the persons in front of the keyboard does not know what he is doing at all! I hate systems with build in "support wheels". The creators of such systems obviously thinks their users are cretins, and that's very annoying.
He wrote an article during the war "the hell of Treblinka", (here in Russian http://lib.ru/PROZA/GROSSMAN/trebl.txt) This article was even used as evidence of the prosecution during the Nuremberg trials (says wikipedia https://en.wikipedia.org/wiki/Vasily_Grossman)
Housing can be both affordable and profitable with a organized system of infill development. eg: You buy a single family home in an inner ring suburb in 1990 for $150K. You sell it in 2021 to a developer for $2.1M (9% RoR), the developer tears it down and spends $1.5M to build 12 apartments on the same footprint of land that sell for $350K each (~400K profit net transaction costs). People in 2021 are paying the same amount for housing as you did in 1990 but you also made a good return on your investment.
The vision-only strategy only made a shred of sense before high performance / low cost LIDARs like the Ouster OS1 became available.

Now it’s an indefensible position on safety or economic grounds.
I had a class like that my freshman year of high school - a public school outside a medium-sized town in Michigan. It even included all the kitchen sink stuff people tend to ask for: budgeting, basic nutrition, fitness, physical health, emotional health, relationships, etc.

Looking back, I think it was about as effective as one could hope for when teaching bored fifteen-year-olds how to calculate interest compounding. Which is to say mostly not very.
I predict the opposite. Tesla sold half a million cars last year and will sell nearly one million this year. The data they have access to is increasing by orders of magnitude. I bet there is a point, let's say 20 million cars total, where they can pull so much high quality data that they will be able to surpass lidar capabilities for the purposes of self driving.

The lidar/no lidar discussion is a fun one because people have different ideas about how the world works. Personally I think LiDAR is the modern version of expert systems. It appeals to a logical/geometric intuition but the approach is brittle to real world contact, especially when paired with HD maps which are a great way to drive yourself into a local maximum.
>A land with a house on it does not somehow increase in productivity to produce more housing, like a share of Apple generally does with smartphones. It's just a pile of concrete, steel, wood, bricks, and so forth that slowly falls apart over time. Buying a house ought to be roughly analogous to buying a car — a thing that (with rare exceptions) decreases in value over time, because it wears out.

Funny, this is the opposite of what I've heard from pretty much anyone bullish on real estate. "You can always live in your investments" is the rebuttal whenever I mention that a share of AAPL could generate more return. Don't forget "land is a finite resource."

On a related note, housing seems like a "bigger sucker" situation right now. A 1100 sq ft living area, 5000 sq ft lot SFH next to me just sold for 50% ($500K) over asking price. If we go with the mantra that "house prices always goes up", who on earth is going to pay for a small house in the millions, let alone where is that money coming from?
> Why do people still expect modern software to run at incredible speeds on hard disk drives?

> Run old technology with old software. It is ridiculous that consumer hardware is still being sold with crappy 5400 RPM disks in 2021.

You pretty much answered your own question. Whether you like it or not, people are still using hard drives because hard drives are still being sold. Just because those people prioritize capacity over performance, for a given price point, doesn't mean they want performance to be ignored altogether.
Of course not; it encourages home prices to keep going up, because people have access to another source to fund home purchases. The problem is, of course, that tapping your 401k-equiavalent is a long-term bad move unless you have a way to quickly put that money back without skimping on other things.
Is the government incentivizing subprime mortgages which are being bundled into mortgage backed securities and resold again?

If so, could you point me to official documentation of this policy or practice continuing to take place?