skysight-inc/HackerNews huggingface dataset:
> That would be inane. You are basically arguing, "Get rid of your competitive advantage." Uber does ridesharing... badly. They have bad management.

What? Uber Pool was never big, and I believe is now completed retired. Are you sure you know how Uber works?

> An Uber (or Lyft) driver who is able to make an average five deliveries (whether it be people, food, or parcels is immaterial to this discussion) in 30 minutes versus an ordinary taxi cab driver who is able to make an average three deliveries in 30 minutes would be correctly said to enjoy economies of scale.

This is not economies of scale. This is just more volume. It would be economies of scale if Uber paid their drivers hourly wages, so their cost per ride went down because they did more rides per hour. But they do not, they pay them a cut of the ride.

> See, I made it simple enough so that even an engineer like you could understand it!

I'd love to see your business.
If you spent $500 for a 50 minute ride, that means you should have rented a car.
My context is someone who isn't already falling for the scams. It is true that you can train a model to follow through to those who fall for the scams the scammers already know, which is a fair point. My point is that you're not going to get a superhuman AI out of our current transformer technology that can talk you into believing you're a superintelligent camel from Arcturus IV and if you don't immediately turn over your credit card number, the Star Alligator of the Galactic Core is going to eat your homeworld.

GPT-3 may even gamely try to do exactly that with the correct prompt! But it'll fail. The result won't be cognitively dangerous to anyone with a grip on reality, it'll be risible.
How the new space race will spark a new industrial revolution
Consider that the downloads page for this site tells you to use their tor hidden service. If you open http://pilimi.org/ in Tor, you'll go through an exit node that could be MITMing everybody opportunistically, not targeting you specifically.
Honestly, I find that Inoreader is the one that's exploring new things in this field.
right as soon as you see aws and azure are competing against sap and salesforce, you know they’re not measuring what most of HN thinks of as “cloud”.
Would love to see integration for this in media servers, or even Sonarr/Radarr integration for on-demand films and such
It was brutal. That town where the NA temp. record was tied would burn down the next day.

https://en.m.wikipedia.org/wiki/Lytton_wildfire
The standard response to comments of this type is to urge the commenter to watch this talk by Daniel Stone: https://m.youtube.com/watch?v=RIctzAQOe44
Perhaps you could ask them? 1-310-301-5800
We've basically already had that for decades thanks to public libraries. In fact, between large collections and inter-library loans most provide 1-2 orders of magnitude more content than the library of Alexandria ever held
My own experience.

I started out with meditation after reading how it was integral in hindu philosophy. I subscribed to the 'think nothing' path of meditation. The focus on your breath or on an 'Om' chant is just a pathway to get to that state of mindfulness. As background, I consider myself as someone who has a decent amount of control over my mind (It's probably just my ego). However when I tried to start thinking nothing, I found it incredibly hard to do. I try to suppress all the thoughts in my mind and actually think nothing, something keeps creeping in.

After a few weeks of practice I began to get there, actively suppressing my conscious thoughts for a few minutes at a time. That's when the senses hypersensitivity began to kick in. I began to hear every bird, every small sound and every smell in the vicinity. I meditate outside so sometimes I'd feel a small ant crawling near my arm, or a small insect sit on my neck. Since I had my eyes closed, visual stimuli were technically already blocked out, but I still sometimes saw phantom images or these fractal patterns from the light leaking through my eyelids. Suppressing these and stopping thinking about these were another level of effort that took weeks.

One other thing I noticed is how time sort of lost meaning. Sometimes I'd stop meditating to find that 25 minutes had passed, sometimes I'd find I barely did 7.

I'm by no means any expert at doing this for myself. Everytime I had a break and stopped meditating for a few days or weeks (when I was on vacation or such), it took weeks to get back to the state I was. If I meditate for like 25 minutes, it's like only 12-14 minutes I'm really in the deepest state. The rest of the time I'm trying to get back there since something has distracted me.

I honestly don't know what it does for me. I do feel next level refreshed after a longish session, even better than the best sleep ever. Honestly, the thing that keeps me going on this is my ego that I can't even control my own mind. I actually try to ignore all commercial forms of meditation training and try out stuff on my own. That way I don't really have the need to validate it as a 'scam' or as 'worthy'.

Just my personal 2 cents.
This is superb. The team sounds a lot more entrepreneurial than just being students. This is the perfect nurturing of entrepreneurs while still in college. Lots of people talk about it, but remarkably few execute on that idealogy.

Here are my exciting observations.

- I see you guys have been working on it for over a year, which shows perseverance.

- Most co-founders have professional LinkedIn Professionals -- very un-student but rather business-like.

- You already have one of the co-founders nurtured by Antler.

I feel you are thinking of exiting to one of the big EdTechs in India or becoming one. Best of luck to all of you.
A hydrogen leak in a confined space is dangerous. People working with hydrogen will quickly learn to take the "positive airflow" requirement seriously.
60m operating loss on 6 billion revenue = 1%. So raise prices by 10% and your making 540m. The market can bear that increase, but they still rather be a solo player and destroy Lyft first. All this doom and gloom is hubris.
I wonder if that type of bias could be some result of the way medical schools structure the courses training our doctors, or if medicine is just a universal enough human need that it exposes bias inherent in all areas of our society.
You're absolutely correct. The fact you're being downvoted rather than rebutted speaks volumes.
I thought this was the POP-CORN phone number, https://en.m.wikipedia.org/wiki/Speaking_clock, now I definitely feel old
As a former merchant, this was not my experience -- I recall seeing a notable difference between fees on similar transactions, and the tracing those differences back to rewards cards.
Something something Poe's law.
Restaurants would do it to increase sales, of course. There simply is demand for delivered food; there always has been, and in a world where more and more families are dual-income and have more money than time, there always will be.

During the pandemic, there was certainly more pressure on the restaurants. After it, the restaurants may get a better deal -- none of that is a particular reason not to comply with the service, it's just one to negotiate more of the costs onto the end user instead of the restaurant.
I loved the iPod Nano and these players are fairly similar, might give one of them a try, thanks for sharing.
> ... habitually accuse others of ignorance, from a position of relative ignorance

Yes, ignorant people do sometimes accuse others of ignorance.

Consider this: If I tell someone their shoe is untied, even though my shoe was untied sometime last week, does that make me a hypocrite? No.

It is also true that people can be ignorant about different things. Minh might tell Alex he is ignorant about some topic. Alex might tell Minh she is ignorant about some other topic. No problem there. Neither is being hypocritical.

P.S. Telling someone else they are ignorant tends to not go well, but if it is done carefully and kindly, it doesn't have to be a bad thing.
PWAs still show up as apps.
Another problem this model has is this is just a snapshot within the timeline. Nobody wouldn't be able to decide if someone was (not) a 'Blind' until he finally had disagree with you. All the category discussed in the article cannot be decided until it's too late and simply a hindsight. What could you make use of the model if it wasn't available in advance?
I think this is a bad take on an old premise. It's not that "global state is bad", rather, "global MUTABLE state is bad". Which is kind of right but for the wrong reasons. Truth is, "mutable state" is bad and "mutable global state" is even worse. That comes from the old times of OOP when people insisted in "encapsulating" state and relied on mutation.

It's sort of a logical fallacy. How could global state be bad if reading from a database o an API is essentially that? The problem is mutation, that if global state is mutated somewhere, other places that read the same state don't know about it.

Modern state managment instead is immutable and is not even an original idea of React. Redux was basically copied from Elm's state management.
> NAT doesn't.

> 1:many NAT does.

This is technically correct but how often do you really see 1:1 NAT.
Uber facilitates matching and routing and many other things. Don't you think that those features are worthy of paying for them?
Ah yea that’s right. Now I remember why we didn’t use JSCore. We had a cross-platform C++ library for both Android and iOS so it was better to use a single JS Engine.
"The African economy will start booming once they get UNLIMITED access to those 1800s manuals on measuring the Ether and where the best seal clubbing sites are in Alaska." Nobody ever thinks this through. Books are basically worthless at this point
Maintaining a large system like Uber requires redeveloping a large chunk of it constantly to keep up with the growing demand as the app scales.

On top of that, Uber is constantly working of features to maintain regulatory compliance

And then there is the need for security teams to ward of hacking attempts and keep the system secure over time
This looks great! I've been bouncing between PDF readers that supposedly deal with highlighting well, and most of them are terrible. Is it possible to export highlights and notes as Markdown? That would let me dump my notes into Obsidian.
In the US there is (was) some way of using the home raffle thing to bypass capital gains tax but I’m unclear on the details.
After reading all the commentary I can’t help but feel HN got baited to shower a narcissist with compliments. I wish more people would just pile the OP’s answers and read before responding to any individual thread.

Well done lads, well done.
Confirming that it works. At 77 pages its a small book which I could hopefully go over in 2-3 days toying around. I already read the frontmatter & it looks friendly. Thank you for updating downloads on the Leanpub side.

You should consider expanding it. (plus: Typeset in latex). Maybe even selfhost it instead of Leanpub since you make it available to read for no charge. I am sure you will find much better viewership & suggestions/PR/contributors.
> "A good question doesn’t give advice, check hypotheses, impose a perspective, share an opinion, make a suggestion or leave the other person feeling judged or cornered."

By this criterion there are rarely any good questions asked at academic talks. The structure there is more like questioners firing tennis balls at the speaker who then tries to knock them back.

There are exceptions, and some good questions involve restating something the speaker said, and asking the speaker to expand on it or explain it in more detail, which they're usually happy to do.
Webclips aren't exactly the same as what you get adding a PWA to the homescreen. They don't have all the same metadata for splash screens and such.
I was thinking of that exact same thing. I remember learning about that in fourth grade and excitedly describing it to my teacher at the time who gave me a hug¹ in imitation of the fungus.

⸻

1. This was in 1978 during the era in which it was not only allowed for schools to administer corporal punishment, but expected, so this sort of teacher-student contact wasn’t outside the bounds of unexpected behavior. (As for the fact that I remember it, I think I’ve realized as my kids have been going through grade school that I have a remarkably detailed memory of my own K-8 years even though they’re 40+ years in the past).
Shipbuilders are investing in electrolysed ammonia production at ports right now, to fuel the ships they will build to burn it.

Full production at the first such I know of is scheduled for 2026. It takes a damn long time to build GW-scale anything.
> How could a device have a hardware-embedded IP address, if the hardware vendor doesn't know which ISP you will use?

By putting the hardware part in the second half, and the ISP part in the first half.

You know, like how it works by default.
> but the page is rendered before it even reaches the client

Which is what PHP was built for.

> If people could try to understand SSR before diminishing it, we could have much more productive discussions.

If new generation of frontend people could try to understand PHP before diminishing it, we could have much more productive discussions.
Medicine is not all about diagnostics. Much of it is also about case management. Encouraging people to do the things that they should have learned from their mothers. Probably 80% or more of my intellectual work as PCP I suspect could soon be accomplished by a computer. Buy many seniors (who tend to need more medical care) don't want to interface with a computer and prefer instead to have a human being that they trust and who they know are working to help them. Once you get your medical care from a computer screen, ala' getting money from an ATM, things will change.

But I agree that the future is likely to change, as it becomes easier for non-medical persons to access and understand medical information and recommendations. It will just then come down to regulatory barriers. When will a computer be given a medical license? 20 years? 50 yrs? 5 yrs?
Taking over the functions is probably only true for the regions in the same part rather than among parts. AFAIK, one region of cortex can compensate for other regions but I doubt that it can compensate for the damage in other part of the brain, e.g. hippocampus or cerebellum.

I often wonder about the nature of the control flow in the brain. And if there is any?
Ammonia will certainly be burned for fuel, at first in ships, soon after in peaker plants, eventually in farm and construction equipment.
They were probably counting on AI driving to be fully capable by now for it to be profitable. Obviously that hasn't panned out so their time may be up.
You and me both. That's ... another project I'm working on in a state of abandonment.

I've done some digging into the history of the Web browser and how and when it came to have the set of features it does today. A large portion of that seems to have chrystalised with, or at least by the time of, the ViolaWWW browser, an early though advanced application, first released in April 1992. This inludes not only graphical webpage rendering and features such as bookmarks, but frames, stylesheets, and scripting.

http://viola.org/

See the features list: http://viola.org/viola/vwFeatures.html

What Viola, and most other browsers didn't have was the notion of automatically and by default downloading and retaining copies of remote content. There was download-on-demand and caching, but neither are epecially reliable or human-usable. A large part of the reason was simply that disk storage was too expensive and small --- by the end of the 1990s my desktop system still had only 6 GB of storage (over three disks), and that was generous for the time. For text storage, the real threshold is somewhere between 64 and 128 GB, at which time a collection of thousands of books worth of content becomes viable.

I'd argue that saving absolutely everything likely isn't useful, at least for specified domains, content, or other criteria, saving in something akin to the Internet Archive's URL-and-time-indexed format could be quite useful.

Document embedding or transclusions (of Xanadu fame) seem ... more trouble than they're worth. Though the idea of links that can indicate the specific version and/or signature of their reference could be quite useful.

Copyright stands between much of what really should and could exist, and what is permitted. This is most unfortunate.
Uber isn't trying to be a solo player. That would be bad, gov would just break them up. Uber is trying to have #1 market share
GitLab team member here.

Nanoc (https://nanoc.app/) is the static site generator we use for our docs.

More info: https://docs.gitlab.com/ee/development/documentation/site_ar...
This is interesting, actually. I like it. Thanks for sharing!
Why aren't there a ton of uber competitors around here then? It's been Uber and Lyft and taxi companies and that's been it... Am I missing something with your argument?
Evaporatorive Water Loss of 1.42M Lakes
The difference is actually finding the root cause or just diagnosing what’s essentially a symptom as if it’s unexplained or isolated (idiopathic, I think is the term?).

My mother was diagnosed with anemia, and received many recommendations ranging from not drinking tea to getting a hysterectomy (which was done, in her mid 40s). It turned out she wasn’t absorbing iron due to Celiac disease. Treating the anemia as if it was an isolated condition wasn’t helpful at all since she needed to address the root cause, Celiac.
Leaks and embrittlement are always trotted out as big problems.

But they are a product of high pressure. Keep pressure low and ensure positive airflow in any closed space, and there is little to worry about.
Or to search for the same timeshare that they can buy for a fraction of the price.

Even better is just not buying one and just renting one a usually little more than the maintenance fee.
I was so surprised going through security in Schiphol Airport recently. I swear there were 3000 people in line, but they have like 30 security checkpoints, and everyone goes in the same line (maybe one per terminal?), so we were through in 15 minutes.

It was amazing. I also never realized how much I appreciate everything in that airport being connected by corridors until I had to navigate CDG and it’s stupid trains and buses.
You don't even have to pay for hosting or anything. Keep your stuff on github and use a CDN with free integration. It's fire and forget as long as you keep the domain registered. If github or your CDN misbehaves moving is pretty trivial and doesn't affect your site's content or address.
I'd love to A-B these to my trusty old FiiO X5 with Sennheiser HD-650's (at home) or IE8i's (when exercising). Hearing the sound-stage and subtle do-dads buried by lesser set-ups is a pet-peeve of mine.

A very important, perhaps dominant, factor in all of this is how the music was ripped/encoded. Except in my car, for which I did separate rips, I don't bother with MP3-320. For the X5, having 200 CDs ripped via WMA9 locks me in, until I can find a week or two to re-rip to a more modern lossless format.

I grew up on vinyl via my (crazy/rich) older brother's Class A/B stereo. I'm spoiled, and feel sorry for the people today that think MP3-120 is "good enough".
Airport Expert Creates the Ideal Layout for LaGuardia Airport (New York)
People wanting to grow these for food have to pay $10,0000s of dollars, get approval from Department of Homeland security, the USDA, and various other agencies. They taste good and reproduce readily apparently.
Society as a whole. Exactly the kind of initiatives governments are supposed to be taking. Instead our governments are totally captured by the profit-seeking organizations and are hellbent on using their monopoly of violence to imprison activists working on these initiatives
Somebody help me understand this?

If the audio quality isn’t better why is it so much better than the “bad” subscription services?

I understand critiques of how little they pay artists but I mean from a customer perspective, why is spotify et al bad?

I assume you have to buy download organize and sync the music for this system?

Is it just nostalgia?
Just a single purpose device that cant text you etc?
>> But the audio quality is a noticeable upgrade from my iPhone 8

Is this still true with latest iPhone? I would expect that iPhone hardware is not a limiting factor for audio quality (assuming a wired adaptor for HiFi headphones)
College is no guarantee of anything anymore. Many schools and degrees don't even have a positive ROI.
Are you raising prices 10% and take it all to your bottom line? That's impressive. Have credit cards stopped charging for their services? Do your drivers not want more of the money when you raise prices? And of course you're assuming that you don't lose volume when you raise prices, because apparently we're in fantasy land right now.

$60M loss is small enough that Uber can almost certainly get to breakeven or a tiny profit -- but a tiny profit isn't enough to justify their current valuation. They have always needed a business that is solidly profitable on great revenue to justify the valuations they've had since the mid-teens, and they'd rather try to convince people that those profits are coming someday than to try to make it as an extremely low-margin company (which is the correct thing for them to do in service to their shareholders, who would presumably be very sad if Uber contracted to like a $10B valuation company).
When the energy going in is cheap, efficiency can become the least important concern.

LH2 is the obviously correct fuel for future aviation. But probably few other places.
Having gone through some of these scaling issues. Three things pop out:

1. With more customers, you find your code is much buggier than you thought. Most code has a long-tail of weirds bugs that may be a non-issue at current scale but absolutely crippling by just increasing the number of users by 1-2 orders of magnitude.

2. As you increase the number of business functions within the company, cohesion breaks down. People start losing more and more context and you start needing full time jobs just to keep everyone pushing in the same direction without stepping on each others toes. I don't know you in particular, but most engineers seem oblivious to how many business functions a company trying to operate internationally often needs.

3. As engineers, there's often a wall between us and huge amount of effort that goes into sales, marketing, and customer service (even if the last is only provided to enterprises). One way to keep headcount down is keep this to a minimum, but you're usually leaving most of your profits on the table.
I don't complete the sign up because Ghost needs credit card info.
They may be efficient for the airport, but they suck balls for the passengers.

The last thing I want to do after a long and tiring flight is load up into a bunch of packed buses.
Almanac of Interesting Numbers
I'm surprised there hasn't been a successful open hardware project for a portable music player. Rockbox, a low power SoC, some decent DAC, a basic display - epaper would be kind of neat - and preferably a standard battery - something like the Nokia BL-5C.
Wouldn’t a redirect have been better?

This is still getting Medium eyeballs and the sign up CTA is buried in the 3rd paragraph…
The Book of Mormon and the Holy Bible