skysight-inc/HackerNews huggingface dataset:
Given it says "containment is a tool from the 1920s" I would assume it's the coronavirus.
Long-distance fiber link poised to create powerful networks of optical clocks
Italy seems to be an outlier. They're hit significantly harder then any other country.
Money supply isn't inflation.

I'm using the standard economics definition of inflation: changes in value of a standardised bucket of goods and services.
`min` and `max` operate on semigroups, not on monoids. They don't have to have a default value, and any nicely strongly typed language should prevent them from acting on empty lists.

You could invent a monoid instance of `float` for `<` which includes `inf` as an empty element and, if you ignore NaN, it kinda sorta works in isolation. However, adding infinity breaks a lot of other nice properties to the numbering system.

For example, the following identity of `min` is valid in the finite numbers.

```
n < min A ⟺ (∀ a ∈ A) n < a
```

The right part of the equation is always true if `A = ∅`, and according to our new monoid the left part is true if and only if `n ≠ ∞`.
Guess the Chinese plant will have to pick up the slack, maybe permanently.
FB vs Twitter: Two investors justify their investments.
I agree. Taking photos with an iPad looks so ridiculous anyhow; the photo in the press release where they're using the thing to do a photoshoot is really bizarre.
In his own words: Thiel prefers to go from zero to one, creating products on which you can build a monopoly.

I think that he agrees on Andreessen about the importance of timing, but he doesn’t consider timing alone a recipe for a successful business.

Also Thiel seems more focused on technology as a whole, rather than the software-centric position adopted by Andreessen.

I think that both views have pros and cons, and that we would benefit from trying to find the greatest common denominator between the two approaches—instead of discarding that or this view.

PS: I read and enjoyed Zero to One, and I’d like to learn more about Andreessen views. If anyone has any suggestion...
I would like an app that lets me map the dimensions and floor plans of an indoor space. Without really knowing a ton about lidar or the specific implementation of it in this device, I imagine that could be done?

The apps that use the camera are all pretty clunky. If I could just walk around the inside of my house for a while and let it map it out, that would be nifty.

(put on tin foil hat) Then the iPad can track my movement around my house and play ads based on which room I am in.

Example - walks into bathroom and I hear "Try new lemon toilet bowl cleaner."
The MacMini has also been updated, from the MacBook Air newsroom article, at the bottom of the page:

```
Mac mini Also Updated Today

Whether they are using it as a desktop computer, a music and movie storage hub for the family, or as a code compile server for Xcode, customers love Mac mini. The standard configurations of Mac mini now come with double the storage capacity. The $799 configuration now comes standard with 256GB, while the $1,099 configuration features 512GB of storage, and every Mac mini is made from 100 percent recycled aluminum.
```
My search lead me to STUN and TURN server as this secret ingredient. I don't know what they mean though.
The s is for "statically linked". Binaries that run early enough in the boot process that /usr/lib might not be there yet.
MayaPosch/NymphCast
I love it. The new keyboard looks great. I have a first gen 12.9 iPad pro and it has completely replaced a laptop for everything but my development work. I can't wait for Apple to put A series processors into a Macbook pro.
Why Your Business Is at Risk of Ransomware Attacks
Yes with i(Pad)OS 13.4[0]

0: https://www.idownloadblog.com/2020/02/06/ipados-13-4-hardwar...
DND doesn't protect you from tabbing to a window with sensitive content in it. Using a VM does.
New TypeScript Features That Improve the Developer Experience
Same in Australia. Here you just go to the doctor when you notice something that’s not right.

Apart from going to the dentist, really the only medical thing that most healthy people would do fairly regularly is a skin check/mole scan every couple of years, since melanoma is such a risk here.
> Example - walks into bathroom and I hear "Try new lemon toilet bowl cleaner."

No, no, no :(
Bitcoin Price’s Volatility Can Be Your Best Ally, or Your Greatest Enemy
There may well be serious real problems, which the central bank can't magically solve. But if you're just worried that there might not be "enough" inflation, the central bank has unlimited ability to create that, if it wishes to. (Of course, whether such inflation would be a good idea is debatable, and could depend on the circumstances.)
Doesn't work. You can launch it, but you can't dock it.
> adds trackpad support

> adds keyboard

So... a laptop?
Sounds interesting! I thought about indoor coach training tracker, but it’s apparently available with front faceid camera as well.
Yes! I'm currently deciding between the new ReMarkable2 and an iPad Pro. Having a cheaper iPad Pro without these AR/Camera-Stuff as an option would make this decision easier.
Mathematics pioneers who found order in chaos win Abel prize
Learning to Program Is Getting Harder
The die-hard fans here will kill you if you're anything less than ecstatic about the astronomical distance MS is ahead of its time with this. Being only about 40 years late with a pre-1.0 version is extremely progressive for µsoft.
I thought for years they were invented by three people, Cat, Mull and Rom.
The dollar is the worlds reserve currency. American printing presses have more life in them than other countries.

Look at the countries that have opposed that since the beginning of the millennium: Libya and Iraq saw, ahem, “kinetic interventions”, and Iran and Venezuela are still being crushed by sanctions for daring to price their oil in Euros and/or RMB.
> I'd vote for a hexagon, since if you stack a bunch of circles, that's the shape you get

I can't imagine that, do you have a link to explain it or is it a joke?
I think the OP knows this already.
sum([1,1]) = 1 + 1 = 2
sum([1]) = 1
sum([]) = 0

0 + n = n + 0 = n

Zero is the unit with respect to addition, so when we add together a list of no numbers, we ought to get back zero.

you can `from math import prod` in python3.8

prod([2,2]) = 2*2 = 2
prod([2]) = 2
prod([]) = 1

1 * n = n * 1 = n

The same way, one is the unit with respect to multiplication. So, multiplying no numbers together gets you one.

all([True,True]) = True && True = True
all([True]) = True
all([]) = True

True && x = x && True = x

You get the idea.
Coronavirus cases have dropped sharply in South Korea. What’s the secret?
The problem with a bank run is not the physicality of it, but the insolvency.
Why on Earth would you want that?
Mac mini
Not going to buy something from Apple, as i am not interested in paying tons of money just for the brand name.
Using a VM means I can use Windows for OBS and several other tools, but I can run Ubuntu/Linux inside the VM for the better tooling and terminal emulation.

It also means I can run the VM at 720p but my desktop at 1440p. Using a terminal in a 720p VM window is PERFECT for showing text in a console, allowing the text to be very highly visible/readable without having to use zoom in features.

You can also snapshot the VM once it's in a working/desired state (which can be configured using Ansible in minutes) and then produce clones for use for different reasons.

You can craft the perfect development environments and even have them talking to each other on an internal NAT network inside of VirtualBox.
Article quotes Thiel out of context, exactly reversing his intended meaning (this is the cost of saying unpopular things, I guess).

“If your product requires advertising or salespeople to sell it, it’s not good enough” and “Technology is primarily about product development, not distribution" appear in Zero to One as the wrong lessons from the dotcom crash. Thiel is saying this to establish what he doesn't believe.
In fact, that entire chapter is dedicated to convincing techies that sales and advertising do matter.
The easiest way to feel connected as a remote team
Ask HN: Best online educational resources for children?
What are some good educational sites for children who are out of school?

I’m looking for sites that have content that is engaging and interactive. It doesn’t have to follow traditional school topics or formats, but it should lead to improvement of skills or knowledge.
> [the keyboard alone] will cost a whopping $299 for the 11-inch model and $349 for the 12.9-inch version.

Oof. I think most apple products are fairly priced (especially their ios products), that's pretty exceptional. IIRC, you can regularly pick up the 9.7" ipad for $299. It's hard to imagine the R&D, materials, and other misc costs (marketing, etc) and even a generous markup would exceed even $150 for the keyboard, let alone twice that.
Amazon advises all its representatives to work from home during the coronavirus
For things like altering split-pane layouts, mouse remains king for both quickly & precisely adjusting width and height - at the same time, no less. Quickly moving focus to 1 random pane out of 6+ is also a single input, whereas with keys it can be up to ~(total number of panes - 1).

It's also a single config option to enable all mouse functionality, whereas setting up keybindings do just the resizing takes several lines.
Mine would be when can we get a Pro keyboard too like the one on the MacBook Air? Escape and F keys are too useful to lose if this is a potential laptop replacement. Maybe Brydge will make a full function aftermarket keyboard.
Good luck redeeming $1million in gold
Both are on FB's board. Neither are on Twitter's.
For clarity, this is the keyboard that people seem to find reasonable (vs the years of "mbp kbds are the worst"), right?
Just in: 5 new cases of coronavirus discovered in Nigeria
The chronic suffering of the VB.NET community
كيف تخلي اليوتيوب شغال وشاشة الموبايل مقفولة
"Epicycles" may refer to ancient astronomers who started with the assumption that Earth is stationary and objects in the sky circle around it.

When observed planetary motions were found to be incompatible with the assumption, epicycles were introduced to keep the initial assumption working.
> the new inverted-“T” arrangement for the arrow keys makes them easier to find without looking down

Heh, leave it to Apple to congratulate themselves for going back to a design that they already had earlier and that everyone else uses.
Psono Released App for Android
Apple's marketing on the new iPad pros is that they can replace your computer. I bought the most recent iPad Pro model and I can say that unless the only thing you do on your computer is browse the internet (without downloading anything) you're going to have a bad time. Here are some things that don't work:

* A full-featured file browser. The files app is sort of workable now, but the experience is really bad and certainly not suitable for any kind of professional or power-user usage.

* SMB or any other kind of file sharing. Once again, Apple theoretically supports this now, but in practice it's totally broken and non-functional.

* Video editing. The iPad only supports a few formats and refuses to show high-quality videos (the limit is 100mbps or 200mbps or something).

* High quality video conferencing/streaming/recording. The iPad pro has somewhat-working support for external audio devices (although apps have to support device selection, and most don't), but it has zero support whatsoever for external video devices. This means you're stuck with the shitty built-in cameras (which, no matter what Apple marketing says, are not "pro" or "studio" quality)

* No ability to do any kind of coding or scripting or anything except via SSH to a real general purpose computer

Some things that do work ok:

* Email

* Web browsing

* Photo editing (this is actually quite nice, as long as you don't need bulk processing)

* It's a decent SSH thin client, with an app like Prompt

* Note taking

I mostly use my iPad for taking notes and stuff at work, and occasionally for photo proofing/editing. For everything else, I still use my laptop.
It's not a meme, it was and is official advice from many places.

E.g. WHO: "a medical mask is not required, as no evidence is available on its usefulness to protect non-sick persons." https://www.who.int/publications-detail/advice-on-the-use-of...

NPR: "the scientific evidence that 'there might be a benefit for people in the community wearing [surgical] face masks is very, very meager.'" https://www.npr.org/sections/goatsandsoda/2020/01/29/8005317...

Then there's places saying the opposite: "Any type of general mask use is likely to decrease viral exposure and infection risk on a population level, in spite of imperfect fit and imperfect adherence" https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2440799/

I don't know what to think, but I've ordered some (surgical) masks.
240W, 96 quite beefy ARM cores, I'm not sure about SMT. All that in 1U. The density is becoming mad.
Looks like they'll have reinvented the macbook air in two generations. Not that it's a bad thing.

> (the lidar) operates at the photon level at nano-second speed.

Whaddya say!
As someone currently in the progress of remodeling my home, including buying furniture for three children's rooms, this sounds awesome.
Yes, if you stop doing the thing that reliably leads to hyperinflation you don’t get any more hyperinflation.
Most money isn't from printing presses. Banks create money by handing out loans.
It is but silver has many more applications overall. Silver is driven about 50% by industrial need whereas gold is about 10%
Meh. Would prefer a summary of Zero to One.
Well, 3 big apples are greater than 8 small apples. If you think otherwise, don't get into business of farm produce retail.
There are already apps that do that. They are useful for home appraisers, interior designers, architects. Anyone who wants to quickly map out a building. They just use the camera though so improving the accuracy with Lidar would be valuable to those professionals who already use those apps.
Why do they have to make this horrible camera pop-out? It means that you cannot place the iPad comfortably on the table to write on it. I cannot understand it - to me it is horrible, horrible design, I like to think that Steve Jobs would never allow such a garbage product decision.

Why would you need a powerful camera on iPad anyway?
I use the shell everyday for git, code search, running my code, SSH. I think on windows it's more common to use an IDE with a GUI for some of these things, but the CLI is generally more powerful.
You’d also receive an iPad with your purchase.
Nice to see computer graphics pioneers being recognized. Reading Ed Catmull's name always brings fond memories of learning mesh processing techniques they first thought of, like the Catmull-Clark subdivision (https://en.wikipedia.org/wiki/Catmull%E2%80%93Clark_subdivis...). Elegant stuff.
Still no ESC key. :(
Or - and bear with me for this - they wanted to make sure that future changes stay compatible since clients might rely on this behaviour.
>It's hard to see how lower paid jobs are more liveable or provide better quality of life

We had higher paid jobs (or more yield per job, a single working person could support a family, buy a house, send kids to college) in the 50s and 60s for example, so I'm not sure why "turning back time" means lower paid jobs (or less purchase capacity).

Give me necessities (house/rent, food, taking care of kids, college, etc) and more freedom/livable work, and I can live without 90% of modern "must haves", from smartphones to same-day-delivery from poorly-paid adults in wharehouses working 10-hour shifts in diapers to send me Amazon Prime goods made in China...
I love this. But I feel like there are people (like you and me) who find an explanation like this awesome and compelling, and then there are others who have a hard time getting on the same wavelength, let alone to try to agree. Like for example, a similar sort of reasoning leads to min(x, y) breaking ties in favor of x, but max(x, y) breaking ties in favor of y, e.g. because [min(x, y), max(x, y)] should stably sort the objects. (There were discussions of how C++'s definition is broken a while back, if you Google hard enough.)

But whenever I've tried to explain things like this to people, I've found so many just don't seem to see the issue, or to remotely care if they do. Their intuitive responses tend to be:

- It's an obscure issue, it's never gonna come up.

- Oh, well I mean it's obviously your fault for calling it that way with that implicit assumption. Why would you think that?

- Well it's the caller's responsibility to read the documentation/look at the source/test the code before they use this function, not my problem to try to fit it into every mathematically possible use case.

I feel like the notion of putting some more thought into what seems like an elementary API so that these issues don't come up and trip up users in the first place seems like a completely unjustifiable academic effort to them, if not an outright foreign one. Have you found any effective way to try to communicate stuff like this and hopefully actually convince people?
> You said you thought ray tracing was never used for direct rays

I didn't say this anywhere. You're imagining extra words between what I actually said. Everyone else in this thread understood my question, and they managed to answer it without also ignorantly trying to correct my spelling.
Coronavirus response isn't democracy vs. authoritarianism
Well it's also a display stand, to raise the iPad Pro up (insert joke about Apple's 20K stand here). Anyone with a current Mac who's been using it for a while want to tel us how the keyboard is? I'm typing this on one of 2018 ones and it feels like I'm typing directly on a desk.
One that runs iOS and has a detachable screen, sure.
There's a chance the meat is cooked with recycled 'gutter oil' too

https://youtu.be/e7S7r31cjAQ
Why is this being downvoted? Apple does price its products as luxury items. It's part of the brand.
$300 for a 256GB storage upgrade. Apple being Apple
Indeed, on the book he says that engineers tend to underrate the importance of the “marketing people”, and that a good product alone won’t sell itself.
Effort to clean it up: UsrMove

https://fedoraproject.org/wiki/Features/UsrMove
Frontline in a Pandemic: A UPS Worker’s View
Discussion of Terraform Back Ends
It's like moving the headphone jack (when they had one) from the bottom to the top and back.
But you can reassign Caps Lock to it in iPadOS 13.4!
If you don't mind losing your caps lock key, you can remap it to escape.
I was looking for this right now, actually.

I want to remodel my house. I want to take my device, scan everything, then put replace parts - new vanity in bathroom, try different paints in different rooms, new lighting etc.

After each change, I want to put on my VR device and walk around. Finally, I want to send the changes I choose to a contractor.
no, i meant donate to a charity, whose sole purpose is to help those businesses in need. You don't donate directly to the business (which is the tax hit).
e.g. https://apps.apple.com/us/app/ikea-place/id1279244498
Anyone here use these for webdev (or development work more generally) as a replacement for a laptop? How well does that work? I'm very curious.
Ask HN: What if the internet goes down? What's plan B?
Given the Covid-19 situation, what if the internet goes down? Behind the servers and infrastructure are real people. Sure, many of them are working remotely now, but many tech places have shut shop. I'm wondering, what if the internet goes down? Is there something out there, peer to peer that the common people can afford - to either buy or build, that will allow them to communicate peer to peer, without the internet?
I was thinking of maybe FM transmitters. Those are pretty cheap. And almost everyone has in some way, access to an FM radio. So they can in the very least receive information. But, what are our options for duplex communication?

P.S - this is not to induce panic, or to promote some sort of conspiracy theory, I'm genuinely interested to know the technological possibilities that we can use to help humanity. This is a technical forum after, all.
As well as a couple of stickers of fruit.
How to Make Mountains
To be fair, my phone operates at the photon level tol, when using the radio...
Show HN: Moving from a desktop hologram lab to a 3D hologram printer
Perhaps a better link: https://www.apple.com/newsroom/2020/03/new-macbook-air-has-m...
Would anyone know if low oil/energy prices impact the gold price? With lower energy prices, it's now less expensive to get it out of the ground and refine it. Could that mean more gold flooding the market in the future?
Of course, a split keyboard with offset columns is something else. The parent comment specifically mentioned Preonic and OLKB. As for the Plank, the claim is that it reduces finger movements, but in reality it is just cramped and puts your writs and fingers in an awkward position. The only thing I liked about it is the layers, but then getting used to that just threw me off when using the standard layout.
Hey HN! LitiHolo (I'm the founder) already makes the Hologram Kit and Full-Color Hologram Kit. They let you make real laser holograms on an average desktop with self-developing film. But we want to do much more, and are working on a 3D Hologram Printer for making hologram portraits and images from digital 3D content.

I'm looking for feedback on what you would want to do with a 3D hologram printer. The plan is to start small (think Makerbot Cupcake), and incrementally get more advanced, so I'm trying to find early applications that would fit.

Thanks for your help!
Interesting. Both want product-market fit; one perspective focuses on executing well to capture the market at the right time and the other focuses on building a differentiated product and creating a market that didn't exist before.

These perspectives were put forward when SaaS was really taking off and software hadn't quite eaten the world yet. The world has change a lot since then. Creating a new software product has never been easier than it is today. That should mean that competition is at its fiercest but we're also seeing a massive consolidation of markets and big winners with no apparent rivals.

I think Thiel's focus on defensibility is becoming more and more important for early-stage startups. Why bother proving out market demand if one of the big players snaps up the opportunity from under your feet. Executing well and moving quickly used to be good ways to defend against this happening but I think the established incumbents are not the slow lumbering giants they once were. They are now the software companies that won the market ten years ago. Maybe our strategies need to change to take this into account.
So basically it has evolved into a laptop with a detachable monitor that includes a built-in camera (which is for sure awesome)
Using the Control key for GUI shortcuts in a terminal, where control codes are part of the interface has always been an extremely dumb idea, just like backslashes as directory separators in path names, but that's Microsoft for you.
I simply don’t have the intuition, at all, no matter how I think about it, that it should be false.

Is there any language that works the way you’re suggesting is more practical/intuitive?
Completely agree

We can add to that the churn of websites trying to remain in sync with browser 'features'
Banks Shutdown, Bitcoin Soars
Surprised no one's mentioned the USB-C yet. Definitely an indication that Apple considers this as more of a replace-your-computer device.
Not really - if you can collect enough data to use as input to an ML algorithm, you can most likely diagnose the virus directly (https://en.wikipedia.org/wiki/Laboratory_diagnosis_of_viral_...). ML seems redundant in that case.

And if ML wasn't redundant, you have no training set containing the relevant bio-markers and a binary variable indicating COVID-19 presence.
My Blogging Experiment