skysight-inc/HackerNews huggingface dataset:
This is probably one of the best investments most people can make.

Think about it. If you become a more effective learner it can have a huge compounding effect.

This course is one of my favorites. Thanks for sharing it!
We're right back to "remember how big and sparsely populated the US is." 150mph in three hours is good for inter-city transportation in the Northeast, but a lot of other places would have trouble justifying the cost.

And that's nothing compared with what a truly high speed train would cost to implement here.
It's a frame of reference. Just to get an idea of how much energy a big truck EV requires relative to a sedan.
Across the board, companies seem to be willing to accept lower margins in the US (perhaps it doesn't matter as much because of scale and competition).

And on the other hand, other countries tend to have higher corporate taxes and higher cost of doing business, and that gets passed on to customers in the form of higher prices.

Note that the UAE restricts most VoIP, so devices purchased in Dubai will not have FaceTime.
I'm a huge fan of spaced repetition.

I base my tutoring practice around it, and I've developed an app around it [1]. I actually encourage my students (and my app users) to use spaced repetition not just for facts, but for processes as well, like coding or mathematics. Going back to old, difficult processes and repeating them has much the same beneficial effects as doing so for facts.

One thing that Gwern doesn't mention, but that I've been very cognizant of, is how hard it is to keep up spaced repetition over a long period of time. That's a big part of why I've implemented streaks and rewards in my app, and also allowed my app users to review things on their own schedule or follow the algorithm. Just forcing users to follow the algorithm continuously tends to result in very high dropout rates.

[1] https://get21stnight.com/
Waslab 05 repository (Ruby on Rails)
It's strange they would use math as an example or where spaced reptition would work.

It's specifically one of the least applicable domains. Things that are mainly conceptual, that build on previous concepts, don't benefit from spaced repetition at all.

With math, the hard part is the conceptual understanding. But once you understand a concept, you understand it. You don't really need to review it again.

This is why the part of the article that lists what spaced repetition works well on is all factual/associative -- vocabulary, trivia, medical terminology, etc.

Spaced repetition is for simple associative facts -- "x is y" -- not conceptual things.

For whatever reason, once we've understood a concept, it seems to be part of our thinking forever. But of course the hard part is understanding it. Some people struggle for days, weeks, or even years in school to truly understand things like derivatives, or pointers, or trigonometry. Spaced repetition does nothing for that.
So I recently moved into a larger city and have taken to try and bike/walk more. I also live in an area with quite a few stop signs/red lights.

It has actually really surprised me ancedotally how many times I see a sports car (mustang, challenger, porsche, etc.) or other type of vehicle with a high acceleration (motorcycle) accelerate in a REALLY short distance. I am talking less than 100 ft/30 m, and possibly as little as 50 ft/15 m. Even more so, it happens on a busy street with a lot of pedestrians or where a lot of folks would bike. On a few occasions the vehicle almost hit another car that was trying to take a turn.
It's not really a fair comparison. Tobacco/Smoking seems avoidable: "If I don't smoke, I won't be one of those statistics."

With disease, caused by a practically invisible virus, we wash our hands, we keep our distance, we wear a mask, but it still seems likely that we will eventually get it anyway. It seems unavoidable, especially because we can't tell who is spreading it. I think the equivalent of being a non-smoker is just hiding out in your house for 18 months and not seeing another human at all, close family and friends included.
Getting a big share of search volume would be worth more than their contract with Google.
Quick check on google flights shows flights less than $200 for BOM-DXB most days next week.
I don't know if you were agreeing with that mentality, but that is a deeply confused business strategy.

There's a huge difference between "we [originally] wanted to target market segment X" vs "we will turn down easy money from market segment Y", and Quibi was doing the latter, which is not defensible. That's especially bad when X vanishes and Y increases. (Here, X = people watching on phones, Y = people watching at home.)

To be "not interested" in Y is to be not interested in money.

Now, to pre-empt an obvious reply: yes, sometimes you do want to turn down easy money from a segment Y. But that's primarily when you're promoting a niche luxury product, where usage by Y will hurt your branding long-term. It's not applicable to a product that deliberately attempts (and needs) to be mass-market, especially when it's targeting transit users and people who have to idly wait.
Municipal governments need to get in front of this b.s. and make sure this vehicle cannot be legally operated on any public road.
Come on, that’s bordering on the kind of contentless dismissal you see in right wing propaganda today. Someone already provided examples contradicting your assertions, and others have accurately explained that defending civil rights appears political because, in fact, one political party tends to oppose protections of civil rights more than the other. Rather than doubling down on blithe, unsupported assertions, you should demonstrate that you are here in good faith by either responding to the fair criticisms or admitting you’re wrong.
I wonder if the GP is complaining about the delivery of said welfare because at least on paper that welfare should be happening. Yet GP believes there are nearly zero benefits. Therefore, I wonder if there is a "disconnect" between what is suppose to happen and what actually happens on the ground.
Because it is obviously an unconscionable incentive that would harm the poor and the desperate for the benefit of those with more money.
In the proxy options, there's a box to tick for sending DNS through the proxy or not.
> the real reason

... has been discussed at length by people with direct knowledge. E.g. Dr. David Joyner. In-person proctoring works for a niche set of situations but leaves a lot of other students unable to participate.
Show HN: A portable templating engine that runs in the browser or the terminal
Yup. It's also really difficult for students. I use it in my tutoring practice, and I always have to convince my students that it doesn't mean they're backsliding.
Nslookup.io – an online tool for exploring DNS records
After breathing pure oxygen for up to 30 minutes. Still insane, but he’s ‘only’ 4th/6th in the all-time list (https://en.wikipedia.org/wiki/Static_apnea#With_pure_oxygen_...)

Unaided, the record is about half that. Don’t try either at home. Freediving is extremely dangerous, even this version, where aid can always be at arm’s length.
Those guys are awesome. This is a video of Guillaume Néry, another "monster":

https://youtu.be/lx8mj2Yu7g0?t=96
The last thing I read (a few months ago) was that they were planning on introducing ads. But it seems it hasn't happened yet.
How would you express deserializing these 'polymorphic JSON' objects using serde/Rust?
I disagree with multiple things he said here under the natural monopoly paragraph in terms of cost and capex. Clearly that is a lower barrier today than it was 20 years ago. Bing, Yandex, Duckduckgo* do as good of a job and in some cases much better as Google hamstrings their results. There are vertical markets where other search engines have been doing a better job for over a decade, such as Indeed. (In which case Google leveraging themselves in to those verticals and destroying those businesses for a few extra dollars in very egregious.)

The bigger issue, I believe, is that Google, in its present form in 2020, is not a search engine. It is an ad delivery engine supplemented by organic results which they really do not want users clicking on. The bulk of the searches normal users perform are served ads and those users click on those ads.

Really no analogy here close to something like power lines, a sewer system, or roads.
Or the Citroën C-zero (which is a Mitsubishi i-Miev).
MDN Web Docs: Editorial strategy and community participation
It’s not - it’s your responsibility (IMO) to be civil and constructive, which I’d argue your second sentence wasn’t.

Your first sentence — while the subject isn’t hard to research for yourself — was fine as it added to the potential of the conversation by encouraging people to cite sources; your second was unnecessarily combative and I’d argue intended to induce some shame response in the OC, and didn’t bring any benefit to the community at large.
President Trump’s Twitter doesn't have 2FA, password “maga2020 ”
E-Bikes solve that problem.
Front end vulnerabilities: using malicious CSS to steal passwords
when serfdom died out in England You’re equating serfdom with slavery when my point is separating slavery by name excludes such classes. India and China for example where very stratified societies, but slavery was effectively a separate and less common institution. https://en.wikipedia.org/wiki/Slavery_in_China

https://en.wikipedia.org/wiki/Slavery_in_India

Anyway, by relatively uncommon I mean compared to the US concept of slavery where they made up a huge chunk of the southern workforce and could be sold between individuals.
That's about 35kWh/100km. For comparison, "normal" electric cars need something between 15 and 20kWh/100km.
I find Readwise does a good job of using spaced repetition, when it comes to my reading across various platforms. Additionally, it integrates with all the popular note taking apps so that you can create a knowledge repository of the most valuable insights.
Great video that triggered some memories. Thank you for linking
Elisp wasn't included either, but I guess the question above covers that.
Don't Vote Alexandre
You don't want to string together a homemade pack of 18650 cells and put them in the wing of an aircraft, or anywhere else a fire will be particularly dangerous.

My point is, I'm sure there's a market for modular battery packs that have actually made these considerations, along with charging/discharging management, power electronics, insulation/cooling/heating and so on.
While I appreciate this kind of solutions, in my brain all I can think is: what the hell is wrong with the web today?

I mean, what did we do to ourselves? How the hell did we ruin the web experience this much?

Looking back in the 90s, the web wasn't the most pretty thing but how simple it was. You went to a news website and that was it. Click, read, the end.

These days however:

- Go to a news/content website

- wait for the 40MB of useless CSS and JS "minified" crap
to download.

- Agree with 2 or 3 huge popups to allow collect your data

- Get a new popup to make you disable your ad-blocker plugin. And if you disable it, you need to refresh the page all over again.

- Get a "subscribe to our newsletter" popup

- Get tracked by amazons, facebooks, etc...

- And once you finally click on an article.... get another popup to subscribe to their premium paid content...

Seriously, we broke the web, and now we are trying to fix it with putting more plugins and tools on top of this problem. I just feel the web is fighting against us and our browsers, and in the end everyone will loose.
Paced Breathing, for Android. Very simple, you can set the inhale, hold, exhale, hold times, and you can set start and end speeds and ramp-down time.

You can save settings, so I have a "Quick calm down" that's just 3 minutes, going down to 4.5 breaths/min, and a "Slooow" that 6 minutes long that has me at 3 breaths/min for most of it, and a "Slooow continued" that starts at 3 breaths/min and just continues for another 5 minutes, for when I just want to stay there for a while. I also have a square breathing pattern saved, 6 seconds per side, but I don't much like square breathing.

Inhale and exhale is shown visually, by sounds, or by phone vibrations. No other fluff.
Microsoft figured out how to do easy side loading on linux: https://github.com/dotnet/core/blob/master/release-notes/3.1...
But deb and rpm packages are just compressed tar archives, unpacking should work just like for tar.gz.
If you could send a single tweet as trump, what would it be?
I don't think you know many people from Latin America. A lot of them will absolutely not like American to refer to the USA only. Especially as the USA imperialism has done so much damage in many places there. It is not as strong as say the Macedonian debate but it is very real.
Trump's Twitter account hacked after Dutch researcher guessed password?
Is there a reason for that other than just tradition/history? Sometimes when things differ from our norms, there may be a reason or an advantage that we are unaware of. Just curious. Thanks in advance!
Another source for e-books: https://standardebooks.org/ebooks/anton-chekhov
twitter.com doesn't support that browser any longer!
TIL that there are people who like the nix language. I love NixOS, but hate the language.
I absolutely hate this sort of thing. You've participated in dozens & dozens of conversations, had all sorts of interactions. And now when people go back to reflect, on their lives, on what happened, on conversations they had... they'll find a big black hole. A vanishing point where ulucs once was there but has deleted himself.

It feels anti-civil to me, to put yourself in public, to participate in public activity, then to mask & cloak & hide all your activity after the fact. While platforms allow this, I think the civic world has an obligation to prevent you from doing this.

If you want to be non-interactable on the medium after time, I'd be ok with that. We can make affordances. But burning all the books is a bad thing. You are too important, too interesting, your contact with the world too notable to let you continually incinerate your online self.
"Box" is used often enough in natural english to refer to a square, particularly in the context of diagrams. "Draw a box around it", etc.
I've done the nose variety. Triggered my gag reflex like there was no tomorrow. Sounds like you are different, thankfully :)
"An electric Hummer counters that brand signaling in unexpected and, for me, surprisingly welcome ways."

Compare and contrast to the Volvo brand, and marketing, which sends all of the signals you're looking for ... and can barely be bothered to enter the electric car market.

It's basically 2021 and what they have to show is an iMobile or eCar "mobility" initiative (Polestar 2) which is barely more than a concept car.

If corporate image manipulation had any basis in reality, we'd have a plain old Volvo V90 electric car by now, based on about 6-8 years of platform development at "the good car company". (I would buy this car, by the way)

Instead, I think Volvo and Hummer are both just carmakers and they will behave the way incumbent carmakers behave.
Acceleration stats aside, SUVs are, statistically, much more likely to kill more people--pedestrians and riders alike--than other types of cars. The increasing popularity of SUVs is one of the main reasons behind the rise in pedestrian deaths in the past decade. Given their bulk, they also cause slower traffic in general. Their popularity is a lose-lose for drivers (and everyone else trying to get around) at the end of the day.

I have mixed feelings about this car: on the one hand, it does give me hope that mainstream consumers who are attracted to trucks and SUVs will start to accept EVs as the standard, and the brand cache will accelerate EV adoption overall. It's also a pretty darn cool car; they did a great job with their initial marketing. On the other hand, it's going to suck to drive (or cycle, or walk) alongside people driving these vehicles. We're going to be complaining about selfish Hummer drivers when we see these on the roads again based purely on their behavior as drivers, EV or not.

Personally, I'm hoping we start to see a more diverse mix of electric vehicles on the market, including new kinds of micromobility. The Biro (https://biro.nl) is apparently a very cool car to own among wealthier Europeans. I've heard of a couple electric motorcycle brands that are trying to copy Tesla's playbook as a high end, prestige brand. More efficient delivery vehicles are desperately needed, too. But unfortunately, when other people drive SUVs, it makes it harder for you to drive these other vehicles safely and incentivizes you to drive an SUV, too.
Documentation is terribly lacking, but in addition examples are perplexing.

Where is the "Url" type, which should be a union of a constrained subset of "Str" (as built by mylib.makeURL) and a three component record (as used in the example)?

Where can I specify that the "urls" list in the configuration must be present and nonempty, and that "host" and "port" are mandatory (or not)? And that the type of "urls" is a list of "Url", the type of "port" is "port", etc.?

How can a general purpose port type have a meaningful default value, given that duplicates are generally fatal and a configuration can contain multiple ports? Only individual port usages (e.g. ftpPort and telnetPort in a commonNetworkServices record) should have defaults.

Where is the body of numToStr? Maybe in some unmentioned standard library?

Is there some kind of enforceable separation between the configuration file (untrusted and supplied by the user) and a schema it must satisfy (trusted and supplied by the application)? What forbids the configuration file to, say, redefine makeURL as Str -> Str -> Num -> Str -> Str -> Str (to add a HTTP path and query string) and make the application's URL parsing fail?
The target audience for this vehicle isn't Tesla model 3 owners. It's people like me who get ~10.5 mpg in their fully built 6800 lbs Land Cruisers.

It's appealing to me.
The internet is always hailed as empowering the people but in reality what it did was make the powerful even more powerful and give a voice to people who should not have a voice.
Oh, you can do it privately instead. Costs $500 or so, but there's as much choice as the market allows for. My description was how it's normally done in the public system.
Artistic enigma decoded by cosmic Czech startup
This would explain why NYC flattened and then reduced the first curve relatively quickly.
the technique costs more than 5 dollars though unless you have the "drug him" drugs sitting around already.
Only in India. Many european countries use , as a normal thousands separator.
I’ve had a bus overtake me with one inch to spare on my right[0] handlebar for the bus while one inch to left[0] handlebar was an uneven wooden fence.

Less vehicles means less chances for that to happen.

That said, I really hope for self-driving so we can all have whatever and it’s fine, and until then grade-separated cycle lanes are also good — but the danger is there, and I wouldn’t oppose car limits if there was a vote.

[0] UK, hence which sides
The downsides are complexity and dissimilarity to existing things, which lead to not many people knowing how to use it.
And my number one gripe, that you can't add a trailing comma to the last list item. Very annoying when streaming JSON data.
If you want to know about specs, Ars Technica has a more informative article. https://arstechnica.com/cars/2020/10/american-excess-is-back...
Are you arguing that both Apple and Google are bad, or that Apple's badness makes Google bad (and vice versa)? That'd be somewhat like a price fixing argument.
"The roads are busier with near silent, zero tailpipe emission vehicles now"

Seems like a nicer problem to wrestle with than

"We have a bunch of young people injured or dead on bicycles or as pedestrians each year"

Like, there's not even any contest as to which of those problems i'd rather face.

If i was to uncharitably re-frame your argument, it's simply pulling up the ladder to avoid future generations having an option to take up a new form of mobility.
Not even like you have to go there yourself. Just get friends and family to do it when they’re visiting.
Exactly. We were lucky that COVID wasn't more deadly than it was. I mean, 200k deaths and people still complain about wearing a little piece of cloth over their face. What happens when the hypothetical next "COVID-21" comes that's 20X deadlier? Do we all just suck it up and die, because we won't temporarily give up the freedom of eating at Olive Garden? Sorry, but I'm not willing to risk a double digit percentage chance of getting sick and possibly dying, just to retain the convenience of indoor shopping and getting my hair cut.
The problem with the lockdown is that we cannot know what would’ve happened without it.
Now was it too extreme, for too long? Probably. Again we can’t know the counter factual.

I really take issue with the ones complaining about a mask. It’s not curtailing your civil liberties. It’s a matter of etiquette and empathy.
If empathy is not enough, then think about it this way...

You can be required to wear a mask just like you’re required to wear other clothing. You do not have the freedom to walk around naked, for example.
It's still not clear to me what this is about and what they're going to do with my information.
Honestly I think it looks pretty cool, way better looking than the Cybertruck.

Honestly we should be praising this - we need more electric vehicles and while this is a luxury toy that is where Tesla started.

EDIT: Honestly, I say honestly way too much :)
You can buy plug ins for most volvos and I think the all electric xc40 is a few months away at this point?
While I can't address the second point, the first point is something that I've run into a lot.

In my own spaced repetition app [1], I simply space out the amount that people have to catch up on if they develop a huge backlog. For anki, my best advice would be to take this opportunity to delete some of the cards that you really don't need, especially if you're just doing this for fun. Anki tends to be very conservative with how long it makes you review cards, anyways.

[1] https://get21stnight.com/
This is ridiculous on so many levels. Who are you to tell someone else how they should spend their money? Not sure how you arrived at your estimate of production either. Are you basing it on how many units they produced of some completely different and somewhat popular vehicle?
I've been using it for 5 years at this point and love it. Biggest downside is that it's so different, which confuses e.g. upstream. Second biggest downside is that getting things right in a declarative manner is a bit more upfront work.
Good point. I could say “whoa that’s uncomfy” and the doctor would react.

There are risks to colonoscopy, primarily in older patients. You can get a perforated bowel.

Quite plausible that where sedation is warranted this reduces the risk. But that would depend upon whether the cause of this perforation is even amenable to patient/doctor feedback.
My Experience with Vue 3 and TypeScript So Far
You may be unaware that there is a predominantly Trump supporting movement called qanon which coopted an existing hashtag, #SaveTheChildren to allege that the cause of child sex trafficking is "Satan-worshiping, child-molesting criminals led by prominent Democrats".

https://archive.is/HSKiG#selection-549.281-549.352

Now, some portion of attempts to #SaveTheChildren on social media are people concerned with child sex trafficking, and some portion are people who think that their political opponents are literal monsters... and it is often not immediately clear which is which.
Ways and Means to Reduce One’s Dependency on Google’s Various Monopolies
I'll have a read, thanks.

I've been trying to lower my HR when steady-state jogging also & variability came up a lot in my light reading on techniques for doing that also, but the articles did tend to feel a lot more at the quackery end of the scale
Using a rust enum I guess.