skysight-inc/HackerNews huggingface dataset:
Multiplying two square matrices takes at most a number of operations proportional to the number of the elements of the matrix. So doubling the size of the matrix from 2x2 to 4x4 squares the number of operations. We know algorithms that are slightly better, but in principle the difficulty of multiplying matrices grows as a polynomial of the degree of the matrix - in this case a quadratic polynomial.

P is the set of problems which grow as some polynomial in the degree of the problem. We say that it takes polynomial time to solve them.

Looking at our matrices - if it takes 5цs to multiply a 2x2 matrix, it will take 4 timrs as long to multiply a 4x4 matrix, and so on.

A three dimensional matrix multiplication grows as the cube - a 4x4x4 matrix takes eight times as long as a 2x2x2 matrix.

These problems belong to the class of problems which can be solved in polynomial time. This class is called P.

Now look at the travelling salesman problem. Here we have to visit each town on a map using the minimum distance travelled. With two towns this is easy. Add a third and you have to compare distances between each pair of towns - a total of three comparisons. Add a fourth town and you are at 24 comparisons. Five towns makes 120 comparisons. The problem grows faster than a square, faster than a cube, faster than any polynomial. The approximation is exponential.

These problems belong to the set NP, those for which we know no better solution than evaluating each alternative in a time which is exponential.

The Non-deterministic part of NP comes because if we were given an oracle, that magically gave us the solution, it would be really easy to verify that the solution is correct.

The fascinating part is that we cannot prove that the two sets are not the same. Maybe Terence Yao will devise an algorithm next year which solve the travelling salesman (Tp) in polynomial time.

The reason we (and he) do not believe this is that there are problems which are so hard, that if we can solve one of them in polynomial time, we can solve every problem in NP in polynomial time. TP is one of these. We call such problems NP-complete.

Finally, any problem for which we do not know a polynomial time solution is NP hard.
These problems,
Good, sounds like we agree that the problem is the way they’re displayed, not the way they’re mastered.

If you want to watch a dark scene in bright light then you should have a button on your display/remote that adjusts the settings to make that possible. Tons of people have produced brightened versions of those scenes and put them on YouTube, it’s definitely possible. You can always remove dynamic range in post, hard to create it if the source material doesn’t have it though.
This is your uncle giving you some advice…

Community college is the answer regardless of what your degree aspirations are.

You will end up saving half of not more of the tuition and boarding expenses compared to spending all four years at a major university, and you get excellent instructors at the most critical time of higher education.

Instructors at major universities for 100-200 classes are usually assistants, not professionals. And you STILL end up with a diploma from a Major university.

You like football games? Put on team colors and pay for a ticket. Most big schools make you pay now, anyway.

You want to go to parties? Then take a year off and have a blast. Get it out of your system. Then go to school.

Here is a link to the list of community colleges in the US:

http://www.applyingtoschool.com/forms/ComCol-State.aspx
There is a stark difference between the critical thinking abilities of my freshman and senior students. It seems to me we're doing something to them over their 4 years with us.
Why does CPU=8 in Intel Core i9-12900K have fast access to all other cores? It is interesting.
P=NP just means the two sets are the same.
Since I guess it's a DOS program, I wonder if FreeDOS would work out-of-the-box on modern hardware?
In my limited experience with transit districts, they don't recruit high performers. It's a hang-out type of career, and they hire people like them.

As far as mechanics keeping older machines running, what is described in the article is typical. It is old and is being replaced. Giving mechanics MS Win 11 to download log files via a recent OS doesn't improve the outcome.
I'm guessing its like bike helmets. I never see kids wearing bike helmets. It's not cool.
It is a historic artifact, not a design error.

From the beginning of US coinage to 1891, silver "half dimes" were issued for the 5c denomination. (There were also briefly silver 3c coins) The 5-gram base-metal nickel was introduced in the 1866 due to silver coins being hoarded amid post-wartime uncertainty, but eventually was preferred to the tiny silver coin.
Sorry for the delay, was traveling on holiday.

In short yeah, using the incident status as the implied times makes sense for the bulk of cases. Totally agree on picking out signal from the users inherent actions, but allowing them to provide more specific data when they know better.

Digging in a little further Im personally interested in moving past the incident data and inspecting the incoming alert(s) and related telemetry/metric/alarm data. For example think of the alarm definitions like “five 1m datapoints with a value above 0.1.” There’s a good argument to count impact (and incident duration) from that first datapoint > 0.1. Then theres the delta from metric processing to alert to incident creation. On the backend theres frequently a delta between mitigating impact and actual incident resolution, again I think getting back to the source alarm/alert/metric data would get us a more accurate view of operations and customer impact.
Nice algorithm inspired…the Leetcode study definitely helped!
if you need a map that doesnt suck VW can pay apple or msft or google to build an app for their own proprietary car OS.

Kinda like Excel for Mac.
semi-colons do help, as does numbering. Using the "and" also helps.
I worked at one of the worlds biggest travel search companies. The guy who was in charge of PPC for our region reckoned that if they turned off Google search ads then the company would lose 70% of revenue. It’s probably even worse now that Google has taken over the SERPs for anything travel related.
I mean it seems like the biggest change in this story is you. It’s true there’s more cartel stories than before I guess but if you wanted to go there you would go. I spent a week in Monterrey this year, it was lovely.
Maybe 10 years ago that as the common things, but there are so many exta resources (esp registers) that is is now giving up almost half the chip. If you can be cache friendly enough, the extra cycles will make up for it.
assuming the details are true

Consider the child's remarkable accomplishments, remarkable family situation, unusually young death, flakey sources (yes, including Weiss)...

It's less likely the story is true than that it's a GoFundMe scam.
So the harm is being able to send a message to someone? Messaging apps are not harmful and are some of the most popular apps that exist.
Video of the damper movement during the 2008 Sichuan earthquake:

https://www.youtube.com/watch?v=NYSgd1XSZXc
And in theory you can bill them and send them to collections by changing your personal terms and conditions.
Wow, that was a long, long read. Especially for a Texan like me. What would you like me to get out of this?
2 hours after your comment, it has been done: https://news.ycombinator.com/item?id=32892164
I have had a set up with a “retina” iMac (5120 × 2880) surrounded by two Thunderbolt displays (2560 × 1440) for close to a decade. No Linux distribution I’ve tried has managed to handle the different DPIs properly during this entire time period. There may be a way to cobble it together but I gave up many times. Neither the display layer, the window manager, nor the apps seem to be able to take full responsibility for figuring it out.

Windows (through Bootcamp) barely understands the setup and even still, dragging windows across the DPI borders results in horrible jank and artifacts.

Only macOS has this “multiple DPI monitors wizardry” figured out, and it worked from day one.
YT is becoming unusable. Watch 2 ads before it starts. Then another ad every 60 seconds. Oh and one at the end for good measure.
FWIW, I actually work in the industry, coming from traditional software.

It is my experience that there is no need for architectural discussions on anything at the micro-scale because if you are implementing effectively for a commercial project you are likely to find that either (A) full abstraction is either overkill/infeasible (low end); or (B) you have a codebase to move with already, likely vendor backed (mid-range).

If you are above micro scale and dealing with a fully fledged RTOS or GPOS, then such abstraction will certainly be baked in.

My point was: this makes the article a bit strange, as such a general observation I wonder who the intended audience is. Perhaps my impression of the industry is unique, but I doubt it. Further, it seems the author is a consultant selling middle management sauce to big companies.
I'd better not get too involved in this because it's ugly politics nonsense, but it's easy enough to find criticisms of California for its power grid, leftism, pro-abortion-rights (which is obviously seen as a bad thing by many people), and political use of immigrants.
> The net present value of a college degree is estimated to be around half a million dollars.

Then why do people with college degrees need bailing out?
What is the point of this statement exactly?
Maybe it's true for remarkable people. Not true in general for "leaders".
Life isn't fair. Genetic code, privilege, luck, are just not evenly distributed. However the number one factor of employees not getting benefits and livable pay is greed.

It's a cynical and quite moronic idea that someone flipping burgers or carrying inventory would make it their fulfilling life purpose instead of just offering honorable pay and letting them stay a separate entity from your soulless corporation. Pay minimum wage, expect minimum engagement.
Censorship of our report on govt purchasing from Microsoft, Amazon, and Alphabet
> Any token system can be thought of as a pot of money. Every cryptocurrency is its own pot of money. When people sell, they are taking money out of the pot. When people buy, they are putting money into the pot.

I'm not sure where the author gets this from, but it doesn't make sense.

Buying and selling bitcoin does not change the size of the pot of bitcoin. Look on the block chain and you'll find no mention of USD, alpaca socks, or Lambos purchased. What you'll find are state transitions with value being unlocked and simultaneously re-locked.

The one exception is a block reward, which requires no unlock (input).

The block reward can be viewed from one of two perspectives:

1. value being created

2. value being unlocked

Either way, the block reward comes into existence on a fixed schedule known to all participants.

The author tries to once again bring in the US dollar as follows:

> In this more accurate representation, we have miners pulling money out of the pot in two ways: transaction fees, and the selling of their Bitcoin mining rewards. The latter is harmful to BTC’s value in two ways. It dilutes the circulating supply of BTC which decreases its value, and it pulls money from the pot to cover energy costs. A majority portion of the money miners are pulling from the system is being burned forever in the form of energy costs, meaning it has no way of ever re-entering the system.

Again, bitcoin transactions merely unlock and re-lock value as an atomic operation. What the author characterizes as "value" is an off-chain phenomenon.

That last part about "being burned forever" is debatable. The residual value of the energy expenditure is proof-of-work that the author conveniently ignores. That proof-of-work is what stands between the Bitcoin network and an attack that rewrites history. So to characterize mining as "burning forever" value misleads the reader into thinking nothing of value remains. This is demonstrably false.
What kind of "talking" are we talking about? I thought most IPC works somehow via shared memory under the hood rather than CPU cores actually communicating, how would you even do that?
https://news.ycombinator.com/newsfaq.html says "If a story has not had significant attention in the last year or so, a small number of reposts is ok. Otherwise we bury reposts as duplicates."
Apple also routinely breaks software compatibility with zero apologies.
How much does it actually cost a university to produce liberal arts majors compared to STEM majors and what would their tuition look like if they only paid for what they used and what directly benefited their education?
I can't help but agree with this. I admit I made the mistake of not approaching it like expensive fan-fiction; I actually expected that they'd stick roughly to the facts of the Appendix they supposedly based it on. So I'm already frustrated that they're making a mess of that.

And clearly they love their plot more than their characters, dragging the characters by their hair to wherever the plot needs them to be, whether it makes sense or not. And even that could have been acceptable if at least that plot was something good, but I still don't see it. A lot of stuff feels like it should be going somewhere, but after 4 episodes, it's still not clear where it's supposed to be going, except towards those heavily foreshadowed disasters: Sauron's return, the fall of Numenor, and it looks like they're also going to throw Durin's Bane into the mix. 4000 years early.

It all looks great. I love how the Harfoots and the Orcs, Numenor and their ships, as well as the dwarfs, look. And there are some great, lovely, inspired scenes. But it's starting to look like it's all superficial. Everything is haphazardly taped together by awkward plot twists.

I really wanted to love this show. I still do. But they're making it very hard.
According to this random (obviously socially/politically motivated) twitter user, who says they heard it from someone else who was allegedly told this in private. That's pretty far from "Musk admits".
> Acceptance of an electoral outcome — win or lose — was once a virtual certainty in American politics, although there have been exceptions.

A 10 minute montage of those exceptions: https://twitter.com/_/status/1565480585715408896
Yes you can order up to 300 soles at once which is about $80. They charge you 7% but it's delivered to your door in minutes.
It would be interesting to see what ML/AI could do rephrasing analysis of legislation.
Apple has ported its entire OS - not just parts - since the introduction of OS X to three different architectures. Should Apple still keep a PPC compatibility layer? If they had ported Carbon to 64 bit, would Adobe have ever moved over to modern MacOS frameworks?

Even further back, should Apple keep supporting OS 9? 68K processors?

How is the ARM transition for Windows working out no matter how hard Microsoft tries?
64 GB of storage, 4 GB of RAM.
I guess we'll have to disagree on the equivalency of this and pirating.

With pirating, you're continuing to use it without paying.
When you 'exec sway' it inherits the tty env vars... So just stuff your vars into whatever .profile the tty loads when you login after boot. This has never been a problem I spent any amount of time on.

If you are doing something magical like auto starting sway or something, then you need to make sure that a .profile is loaded by whatever is starting sway if it doesn't inherit a .profile.
And I want the car OS because it creates variability and a diverse landscape.

It’s how you end up with natural selection which produced the central wheel console pioneered by BMW in 2005 and has been the standard for 10 years.

There is a reason why BMW makes cars and Apple makes phones. Right out of the box you cant even charge that brick while listening to music because they killed the 3.5mm jack….at a 1500$ non subsidized price tag.
> Short term they could get some extra charge for those, but if they don't convert they lose a customer.

They _might_ lose a customer — I suspect that they've determined that enough people either simply don't review their results closely or increase their spending to make it a net profit for them to do this. That would fit with the general pattern of hubris you see in many of their decisions where they've been coasting on their old reputation for at least a decade and don't seem to be fully aware of just how much loyalty they've sacrificed.
No contest there; keep submitting, buddy. I monitor and upvote.

The pool is just very efficient. I bookmarked it.
> it’s the capacity to actually create the hash capacity to execute the attack. Not even the NSA could do that,

I don't see why. The current value of BTC mined in a year is around $6.5 billion. Hardware lasts, let's be generous, 2 years. No one will mine BTC at a loss, so the total cost of mining BTC for 2 years must be less than $13 billion. So for less than $13 billion, the NSA can create a new BTC mining network at 50%. That seems well within their budget. And if they sell their BTC, they can probably be cashflow positive before destroying the network.
Just following up to say that KDE Connect works surprisingly well on Windows, too.
Yes, absolutely. Memory is cheap, software is valuable, forcing everyone to churn constantly to satisfy some sort of aesthetic is a massive waste of resources.
You might just be going down a deep rabbit hole with these questions :)

You can definitely do things like that, including pinning an application to a certain set of cores for performance. When you have NUMA it's pretty much mandatory for low latency applications, since each CPU gets its own memory slots, significantly lowering latency cost. It's physically closer, for one.

It gets really fun when you get into network traffic, since you can bind a NIC to specific cores alongside kernel bypass stuffs and interrupt handling. Sometimes it even makes sense to have one NIC per CPU!

It's a lot of setup work though. Have a look into CPU shielding as well. The Linux scheduler cares more about fairness than it does latency, so you have to be very intentional in your setup.
Bitcoin literally does nothing special for Venezuela.
Yes, In a very strict sense it is true for many experienced programmers and their domains of expertise. So when a expert embedded systems guy tells me that he will not touch C++ for his project, i understand and only ask him to look at C++ as a "Better C" and nothing more. All features are not equal and some are obviously more beneficial than others eg. simple user defined types i.e. class value types vs class hierarchies.

A good example is Linus Torvalds opposition to the use of C++ in the Kernel.
Medicare is by far the most efficient means in the US to pay for healthcare, including cash.

The problem with healthcare as a market is that it isn’t. We don’t allow medical professionals to decide that you don’t deserve blood pressure medication. But we do let bean counters decide that you get to die for lack of resources.

By doing this not only have we created a moral dystopia, but we’re wasting resources that we supposedly care about.
I'll take a crack at it.

> What absolutely confounds my comprehension of marketplace sites and any online business driven by user directed discovery, is the unbroken and never deviated from practice in every industry and field of making the method and techniques used for search as unique inviolable individual apotheoses of a imaginary USP.

I don't get marketplace sites. Specifically, it seems like every company decides they have a unique selling point, and they should build all search features around emphasizing that selling point at all costs, instead of building it around showing the user the thing they were looking for.

> why on earth doesn't occur to anyone that heterogeneous search methods producing a range of results with a identifiable classifiable process or at least perceptual sensibility that users can get some understanding of, might provide not only consumer choice but profit?

Why don't they provide a search interface that will be familiar to their users? Wouldn't that be both more user-friendly and also more profitable?

> The only thing that I can imagine to be happening is the overriding objectives must be econometric optimization and blow every other consideration. Or maybe it's possible with the adherent mantra of "internet speed" development that without constant investment in maintenance "development" nothing will work if left alone while bringing in alternative abilities.

Maybe the companies are Goodharting themselves to death? Or maybe they value developing new features over making sure that their core infrastructure actually works.
A federal job doing what? It would also be a job that most people wouldn’t “want” and now the government is involved in “indentured servitude”.
Really depends on the management of the acquiring company. Adobe acquired Aldus and didn't help the Aldus market.
Do you know how long this fork existed?
The most important thing is that many emulators are not modeled in such a way as to offer cycle-accurate results, whereas this is easier to achieve with FPGA implementations of devices. You can see evidence of syncing issues from emulators just from reading things like the Dolphin emulator's update blog and how many times they're dealing with them [1]. This is a double-edged sword of course, as a cycle-accurate reproduction of the original hardware doesn't give the same opportunities to offer modern improvements like arbitrary scaling, updating textures, and makes state saving more of a challenge.

1: https://dolphin-emu.org/blog/2022/09/13/dolphin-progress-report-july-and-august-2022/#50-16901-flush-command-buffers-after-multiple-efb-copies-by-tellowkrinkle

(the linked example also highlights how variations in hardware memory architecture present real hard challenges for software emulation, which would be simple to overcome in an FPGA)
How do you even define “critical thinking”.

Obviously students will learn how to game the system and pass all the essays/tests over their 4 years.

That doesn’t imply that they’re more useful for society or better placed for their futures.

It just means that they know what words/phrases to use to get an A on their paper.
Not bad! Except you used "said":

> a plurality of non-intersecting surfaces arranged in layers, each surface comprising multiple units, combinations of said units forming passing and blocking tuples, each tuple comprising one unit from each of said surfaces such that the projected path of any specific particle through the filter traverses a single tuple

In fairness, I'm not sure "the" was generally accepted in 1991.
Stories like this have been appearing pretty regularly on HN ("Stripe has decided to nuke my entire business").

https://news.ycombinator.com/item?id=32854528

Considering that a USD payment company can literally destroy a business without a reason, how confident are you about that "little or no guaranteed demand" part?
So, today, I should connect my phone to my car?
Those are "real" wages, not nominal. And as the number is quite a bit lower than the inflation rate against which it is being correct, that seems to undercut your point, no? Inflation doesn't make you poorer.
*Mac OS :)
I'm surprised the article didn't mention that BART is the only train in North America on the uncommon 5'6" gauge. This is another factor making parts and equipment more difficult to source.
First game I thought of. Baba is hardcore.
I had a sidetake on that quoted bit.

It’s been curious to me just how related all these coins are, even as speculation devices.

When Bitcoin falls, they all fall, when it rises for the most part they all rise.

The correlation to completely separate pots is something I don’t think anyone can fully explain.