skysight-inc/HackerNews huggingface dataset:
You seem to be under the common misconception that it's the energy density of batteries that make them unsafe. This is completely false. There's nothing inherent about battery energy density that makes them more dangerous. What makes LiPo/Li-ion unsafe is that they have a flammable liquid electrolyte in the middle, that's both responsible for starting the fire (the explosion you see with some battery fires) and for failing to keep the anode/cathode separated afterwards.

LiFePo doesn't have significantly less energy density, but they're far safer. Same with sodium batteries. Solid state lithium ion batteries have more energy density than Li-Ion/LiPo in some cases, but are generally far more safe, since there's no flammable electrolyte.

EVs, even with LiPo/Li-ion, are FAR safer than ICE vehicles, there's just no competition. Lots of oil and gasoline being piped around, with potential for leaks + old electrical wiring = recipe for disaster. We had a huge parking garage fire here in Norway recently, started - as they often do - by an ICE vehicle. Lots of EVs in the garage, but not a SINGLE EV battery pack caught fire. If all of them were EVs, the fire would be far less serious (the interior of the cars still burned, but that's all).

EV battery fires are tricky to extinguish, I'll give you that. But the fire department here in Norway say they already have the needed training/experience, and make it clear that EVs are far better for fire safety in general.

As for your points on whether they're better for longer distance, personal journeys.. I mean, yeah.. at some point they are. If you're driving 1000km in a day I'd definitely agree. But how many people do that often?

* far higher energy density: don't forget to account for efficiency and regenerative breaking (hybrids get some of that benefit, but then you get all the downsides of both technologies) .. practical range difference is much closer than what your numbers would indicate. For most people the range of EVs is good enough, even for long trips.

* essentially immediate "recharge" time: Yeah, but it's still a couple of minutes and you have to stand there while it's filling. Almost every single road-trip charging session for me has been: 1. spend 30 seconds plugging in and beeping the payment card (with Tesla you don't even have to do this). 2. walk into a restaurant/cafe/grocery store and take a pee, drink some coffee, buy groceries for the trip, etc.. 3. come back to a fully charged car

* 100+ years of ICE drivetrain expertise: This is totally pointless. The only reason you need that expertise with ICE drivetrain is because it's so hard to maintain. Most EVs simply don't have anything to maintain, other than what all cars have (break pads, air filters, etc.). And I've never heard anyone here in Norway having trouble getting their EV fixed due to inexperience. The training isn't hard. You can even get people to change individual battery cells on some cars now.

* The last point I covered above.
Sounds more expensive? And doesn't tell you where the issue is, unlike a single burned out fuse?
Learning it recently for a small game design, I was surprised that you couldnt easily copy a table, and even more suprised you needed "metatables" to do it...the extra steps seem far from simple.

Maybe I'm just missing something. If I recall, I was simply trying to create a new 'object' (game character) from a template but it required metatable boiler plate that just made no sense to me.

Many languages, this is simply a = b, or at most allocating some space first.
A lot of HTTP frameworks let you violate the HTTP spec to a surprising degree. Though with Rust you can just double check the return data with a middleware for Axum.
we have to count our blessings that we are. But we are surely causing ourselves tremendous problems by unmanaged and uncoordinated alteration of the global environment!
I wonder how often it actually says racist things and what kind of context it says them in. I just tried it out and mostly it just went off on its own topic. I kept having to redirect it. But it didn’t say anything racist to me.
Corporate firewall blocks the page for me, so take this. https://web.archive.org/web/20220809224134/https://www.bunni...
IIRC the 8 on a bight is best for load parallel to the rope, and the butterfly best for load perpendicular to the rope. The butterfly is really fun to tie though :)
The Ashley Book of Knots became public domain a few years ago (70 years after Ashley died) and you should absolutely read it or at least skim it here:

https://archive.org/details/TheAshleyBookOfKnots

This would have been sooner had Disney not robbed us of our own culture by purchasing whatever legislation they feel benefits them, regardless of the cost to the rest of us.

Sorry, I'm bitter, but it really is a fantastic book I wish more people could've read and expanded on sooner... Say, 50 years after Ashley died instead of 70.
In 2019, the Fed decided to raise the benchmark rate, but then reversed course after a few months. I wonder if his prediction in 2019 was before or after the Fed started lowering rates again. Rates were also rising in 2004 when he made his prediction back then, too. There is probably more to his analysis, but he seems to predict housing prices will fall as interest rates go up. Most people would predict that.
Recently conservatives started liking him more, and liberals started hating him more.
I specifically bought a Bonfire X electric motorbike, from Black Tea Motorbikes, because it is easy to repair and replace parts myself.

Of course, it hasn't shipped yet - but because it is based on a standard frame (Honda CBR500), there are many options for spare parts and upgrades on the market.

Its going to be very interesting to see how far we hackers get with electric vehicles. I've already got my OBD debugging gear ready to go ..

IMHO, vendors who work on removing bespoke parts from their designs, are going to get the electric transportation business ..
> Maybe consider that you or other authors you’re working with are bad at writing software.

OK, I've considered it. Now what?

(I don't use typed programming languages, I just want to call out this kind of rhetoric.)
And it was taken over by the government because those private companies were going bankrupt, so it's still not a good promotion for the private market
ViewComponent is a nobrainer for me on every Rails project. I even wrote a library of them for our design system, it's worth its weight in gold.
I carry a couple of prussik loops primarily for abseil backup, but have also used it to recover from a fall off an overhang when seconding. The leader was far enough away they couldn't hear me asking to be lowered. I also couldn't reach the rock so had to ascend the rope. Prussik gets the job done.
Can someone translate into some cohesive points?

right now this reads like a rambling rant and I’m not sure I expect this kind of post on hn.
I still find typing in Python and TypeScript hugely beneficial, even just for how it makes my editor work better. Being able to click to a definition does wonders for reading unfamiliar code
Nono, I agree with you, I think I was wrong above, as I wrote above it was probably just a psychological bug. But I still think there's much room of improvement with the tools we already have.
There certainly is a difference to older cars. That is what I wanted to say, it is not specific to EV cars, Tesla was just an example for a car which is controlled through central electronics. Fuses are easy to replace as they are meant to be replaced. EV probably need fewer because its batteries offer smoother voltages than your alternator. Lights don't need to be replaced as often but it got more complicated. And deeper operations like replacing a track rod is almost impossible or very work intensive in newer cars. And these are maintenance parts too if you assume a longer life span of a car.

What I would criticise is that there is often not a real technical reason why things got harder to replace or that there is an absence of a general purpose diagnostic unit.
Well I've also seen my wife playing a F2P game and sometimes the ads either crashed the app completely or locked up with her unable to click on either the ad or close. When they worked the close button was available.

I'm not rich enough to play free to play games so I have no personal experience.
What are you supposed to do with old clothes?
>most people who believe that EVs are harder to repair appear to be owning older, simpler cars.

Opening the hood on a modern ICE is intimdating. So much (neatly, precisely) crammed in there (covered with plastic) I wouldn't even know where to start. Compare that to an old truck, where you can practically climb inside the engine compartment beside the motor...
I'm brushing up. One tidbid is that "coupling" has a specific non-intuitive meaning which differs from "action-reaction pair." Since a couple acts on the system, and the action need-not be always-centering, it produces a torque, but exerts no force.

The article also mentions mass-growing at a distance, I wonder if
- they really mean "with displacement, mediated by speed"
- there's some interaction under which two gluons can enter a binary, uniform rotation about one-another

The introduction to the full text identifies a subset of the theories under comparison, and hints at the techniques the theories deployed to arrive at their predictions, for example by "light-front quantized QCD" [1]

[1] https://www.mdpi.com/2571-712X/5/2/15
That's the one. Glad to see all the mis-tying isn't just blamed on Europeans :-)

I remember reading it before led me down this page of climbing mishaps (linked at bottom of page): https://www.climbing.com/skills/climbing-anchor-death-americ...
Cool!

The TPA3116 is a nice sounding chip don’t you think?
So, my laptop is dumb for turning off the discrete GPU when I unplug it?
Before the mass EV adoption, shouldn't we upgrade the power grid? The Brits call it "TV pickup", the synchronized surges of electricity consumption, by electric kettles and such. Now consider 10s thousands of EVs start charging after work.
I get the wish to preserve but I don’t understand why burry it back? Why not encase it in a temperature/climate controlled structure? I’ve seen plenty archaeological digs like this. Is it due to money or why?
Some communities actually promote that style. Particularly the terse array languages like APL or K/Q. Each file might only be half a page of code (you can do a lot with a single line of APL) so long and detailed names might not be necessary. You can look at all of Aaron Hsu's talks to get a better idea of this (particularly everything about his co-dfns compiler). He wrote thousands of pages of code to finally get to the final compiler that is a single page of code (fits on a t-shirt).
Not OP, but looking at our metrics the first response I picked was a load for a blog article. It does 3 db queries (because it is not very well optimized, the blog is not super high traffic), one for the tenant, one for the actual article and finally one for the (image of the) team member who wrote the article.

This endpoint runs in ~26 milliseconds average, 6 ms of which are in ActiveRecord and 19 ms are in ActionController. I assume the remaining millisecond is an artifact of rounding in the monitoring and/or some overhead in other bits of the framework. Most other endpoints are pretty similar, though there are some internal queries for reporting etc that take much longer of course.
Can I not, as part of my local community, advocate for my right to build what I want on my land? Can the person who wants to have only low density not move somewhere else if the community decides to allow density?
Most Americans support using the popular vote to decide U.S. presidents, data
I think I sort of agree with you?
Or maybe both can happen at the same time?
One doesn't have to exclude the other.
> * Really needs the ability to toggle direction mode, i.e. always pointing north, or pointing in the direction of travel or the device's compass.

It does this.

> * Ability to record GPS path

It does this.
BATNA?
Ignorance is a bliss.

We as society shouldn't focus so much on being „happy“. Happiness by itself is not worthwhile. What are you going to tell on your deathbed and how will your relatives remember you? Oh, he never did anything, but he seemed happy all the time!
Is open uni bachelors good if you want to do post grad research afterwards?
Your comment is kind of a non-sequitur. This isn't a new feature, it's a formalization of existing semantics.
Agree, data sellers though are effectively dealt with by GDPR.
Other major markets should consider adopting GDPR too
I arrived at this empirically doing some tests at work. In general, Sha and md5 BOTH present randomly distributed numbers. However, most IDs (and the assumption made here) are numeric. For the first billion or so numbers, sha doesn't create a random distribution, while md5 does.

Looking back, I don't remember my experimental setup to verify a random distribution and I recommend checking for your own setup. But that was the conclusion we arrived at.
Regular people don’t realise or care, they just want to be where their friends are.
A story of courage, struggle and love of a great nation in one small conversation. Based on a real events and stories
>This is a problem in itself, but is exacerbated by overcharging for replacement parts, and by lack of free-software support to hack around such issues.

These things feel like they'll be market-sorted in the future. Computers become cheaper, we know that. Software does too, as it becomes tried and tests and its marginal cost drops, or it moves to open source.

We are still so early in the EV revolution. I know lots of people with lots of cars, and only a handful have EVs.
surrounded by idiots?
I dislike Elon as well. But the diving incident is not something I dislike him for. It was simply an emotional response when that guy insulted his efforts. There's plenty of reasons to hate Elon but this ain't it.
The soil itself also contains information. Not disturbing that unless necessary will let future archaeologists with better technology extract more information.

Also, I'm guessing that the sand encasing the site is a temperature/climate controlled structure when buried properly. No sunlight and no air, for starters.
I've never used an app from my bank. They have a website.

My credit card has a website. I don't store my card on my phone. It's a card, I carry it around in a wallet.

Why would I need an app for a shopping mall? I was in a mall last year, because that's where the LEGO Store is.

I've never used Watsapp.

Gmail is a website. Facebook is a website. Never used a dating app.

I don't need to use an application to get to Burger King, I have feet and cash.

My credit cards work in Italy. Anywhere there's an MC, Visa, Amex or Discover logo, I've got something that will work.

Pushing back starts with refusing to do stupid things just because all your friends are doing it.
I generally agree with you that compiling to machine code is not a magic wand, code that does more is always slower than code that does less in a fair fight. But interpretation adds additional overhead to make slow code even slower, the more complex\unoptimized the interpreter the more it adds overhead. It's good for a language to have a baseline expectations of "Don't make things worse", shit code will always be slow, but at least it's not made slower by things outside of the developer's responsibilities.
> https://twitter.com/techemails/

Slightly off-topic, but wow. What an absolutely brilliant twitter account.
This design is a fault of traditional RDBMS products that have strictly imperative and synchronous DML commands.

The physical schema ought not be a transactional change, but it is in most products, with locks and everything. This isn't necessary, it's just an accident of history that nobody has gotten around to changing.

For example:

Rearranging the column order (or inserting a column) should just be an instant metadata update. Instead the entire table is rewritten... synchronously.

Adding NON NULL columns similarly requires the value to be populated for every row at the point in time when the DML command is run. Instead, the default function should be added to the metadata, and then the change should roll out incrementally over time.

Etc, etc...

Whatever it is that programmers do with simple "objectid-columnname-value" schemas to make changes "instant" is what RDBMS platforms could also do, but don't.
> For them there is nothing worse than relying on another team while they could geek out on the subject themselves and they believe they could do it better.

It may not be optimal, but it’s almost invariably faster.

Personally I like the way my company does it, where people have (more or less) full access to the AWS account, but there’s a lot of automated guardrails/scanning that alerts you when you’ve done something stupid (public S3 buckets etc.)
I like your take, though I think the analogy is more accurately applied as -- if you need lifejackets you are a bad sailor, or if you need a bicycle helmet you are a bad rider
It reminds of the alternative to dark matter that is MOND, stating that the law of gravity behaves as 1/r at large distances (as opposed to 1/r2 at our scale) [0]. I personally like it because it seems less ad hoc than to posit the existence of invisible matter, and similar in my mind to the special relativity adjustment. (Do not take this endorsement too seriously, of course.)

However: "The most serious problem facing Milgrom's law is that it cannot eliminate the need for dark matter in all astrophysical systems: galaxy clusters show a residual mass discrepancy even when analyzed using MOND. The fact that some form of unseen mass must exist in these systems detracts from the adequacy of MOND as a solution to the missing mass problem, although the amount of extra mass required is a fifth that of a Newtonian analysis, and there is no requirement that the missing mass be non-baryonic." [0]

[0] https://en.wikipedia.org/wiki/Modified_Newtonian_dynamics
>so prone to FUD.

"FUD" is such a terrible term in this context. Uncertainty and doubt are good for the discussion. Any discussion, frankly.
Aren't there some studies about how stress level doesn't seem to change much in relation to income and education ?
Happiness is temporary, much like life.
Elektron Legacy
I visit news sources daily.

It does not impact my productivity, as I do the readings in my "spare" time or before going to bed.

What did impact my productivity was these moments when you receive a new email, a call, or notifications (WhatsApp, followed Websites.. etc..) and smoking a cigarette

Each short break has a effect of breaking your concentration and you need to re-think and work yourself in again. In a creativity process, this is good. But not in a thinking/coding/designing process.

So my solution to this was to unsubscribe all notifications and RSS feeds = Minimizing distractions while work time. But, as smoking is a human right this is still a distraction I won't minimize :)

If you don't need the (information) RSS feeds for your work, I would start here.

Having that, you need to monitor your movings. Take notes on time needed for ex-work and work doings.. you'll see quite fast what does distract/brake your productivity.

For me, I approx. know how much time is needed for something. Taking notes shows f.e. much more needed time. So, by that, it's possible to find out which doings distract you so much.
The GP's point applies even more to factory farms than grazing animals because animal feed can be transported across the globe. It's the agricultural version of specialization.

The vast majority of feed used in factory farms is inedible to humans. The primary ingredient is often the waste product from bioethanol production and distillation [1]. The edible varieties of corn, barley, oats, and alfalfa used in feed aren't that popular with people [2], are mostly produced on land that would otherwise be unproductive, and are mostly used for newborns or in the final stage before slaughter to make the meat fattier and more palatable.

[1] https://en.wikipedia.org/wiki/Distillers_grains

[2] For example, even though barley is a core ingredient to much of the alcohol industry, animal feed still accounts for two thirds of barley consumption. Most of the rest of the barley ends up in animal feed in the form of distillers grains.
I shared the exact same sentiment when I transitioned to Windows after a long period of only using macOS. A few nice candidates I found include Wox [1], Keypirinha [2], and ueli [3].

I eventually began building a C# launcher myself and over time it has become my daily driver - feel free to check it out at https://github.com/dkgv/pinpoint.

[1] https://github.com/Wox-launcher/Wox

[2] https://keypirinha.com/

[3] https://github.com/oliverschwendener/ueli
If you assume happiness is a feedback mechanism rewarding you for doing the right thing, then it makes sense. The reward needs to be modulated to be effective, constant reward would stop us from improving
Being smart isn't enough, you have to be wise.

Intelligence can help you climb to the highest positions in business and academia, wisdom allows you to understand that it isn't really worth it.
Bacterial cellulose enables microbial life on Mars
“That is their happiness: they see all life without observing it. They’re buried in it like crabs in mud.”
A finite field would ALMOST work here. However, you're making the assumption that the user ids using your application are random. If you have an A/B test running using that same mapping, you'll end up with a server hotter than the other if one arm of the experiment is widely successful.
Whether or not they suck is irrelevant climate change IS going to change our lifestyle and you will thank Jesus for your tiny electric microcar.

It's time to accept that the age of excess and unlimited resources are over.
Ask HN: Would this score system encourage replayability in a multi-level game?
Consider a multi-level game such as Candy Crush.

The idea is to have a very simple score system that encourages level replayability without affecting gameplay within a level in any way.

In particular, when you pass a level, the number of points for that level is equal to the number of levels passed (including the level just passed).

When you pass a level that was already passed, your level score replaces the previous level score.

Your total score is equal to the total of the level scores.

This encourages replayability of levels since you can get more points for passing a level as you pass more levels.

Do you think this idea would encourage players to replay levels and compete on a leaderboard for (total) scores?
According to Hertz in their 2022 Q2 report [0] (pg. 11), they are spending 50-60% on EV maintenance compared to ICE.

[0] https://ir.hertz.com/static-files/bf4780e2-5bd6-4236-8b11-ed...
It appears in 2019 over 50% of vehicles recalls were due to electronics:

https://www.stout.com/en/news/stouts-2020-automotive-defect-...

There were more or less as many cars recalled in the USA in the 2010s decade than there are human beings residing in the USA:

https://www.statista.com/statistics/541703/united-states-veh...

I agree with you an electronic failure can be easy to fix. Or it can be okay not to fix, for example i don't care if my central car computer can't control the opening/closing of my windows. The problem is, are manufacturers making it easy/cheap to fix? And are they making it so a tiny fault in a subsystem crashes the entire car to a halt? The answers are, in my humble opinion, no and yes respectively.
It is fascinating. I'm not imagining scifi application or anything, this discovery in itself is fascinating.
>There is a difference between marketing and lying yo

In a perfect world, there should be. But sadly we don't live in that world.

> The fact that you can't tell the difference speaks volumes for your moral character.

I seem to have hit a nerve there. Sorry if I ruined your day or something..