skysight-inc/HackerNews huggingface dataset:
Ok. That hurt but thanks for the honest response. Would it make sense to post pone the interview?
Did the recruiter give you a list of materials to review? You need to practice whiteboard coding in a timed setting as well. Leetcode is a good place to practice online, but a whiteboard is even better. If you need interview practice, you can also try mock interviews (they tend to cost money).

Good luck!
Only 13% of CVD deaths are caused by elevated blood pressure, and that is elevated blood pressure as a long-term condition, not the temporarily elevated blood pressure coffee may cause.
>>now people are rotating en-mass to Bitcoin Cash which has the larger blocks they want and doesn't have the divisive developers.

This isn't entirely objective. BCH has 25% of its market cap trading today in volume. There's something weird going on. As for the developers, BCH has very little Github activity while Core is being actively worked on and improved.

I don't have a horse in this fight as I am into other cryptocurrencies but your statement is not very fair.
Thanks c0110.

The recruiter asked to review basics of Algos, DS, Space and Time complexity and System design concepts.
Really? California lawmakers that literally invent terms write anti gun laws. Hell in Canada we had people flip through a magazine and cross out scary guns. There's even non existent guns banned by name.

The only NRA response I found echos what I first thought. Gun pointed at you? Don't move a single bit unless exactly directed. I figured that out in real-time, because I'm not going to trust some stressed out cop to stay chill. Particularly more if I appeared to be part of the highest crime demographic. It's still unfortunate and the cop should have had more training perhaps. But I guess I'm falling for propaganda.
>>Back when it was $10 or $40, it was a great speculation. The ship has long since sailed.

Has it? Many learned people believe BTC's ceiling is in the five digits. And back when it was $10-40, no one would believe you that it would go to $6000-8000.

The only thing we know about BTC and cryptocurrency in general is that we're looking at serious variance, regardless.
That was a very interesting read. Thanks for linking it!
If there's fiber optic internet with no caps, i'm sold.
Here's the super-summarized story for those who are out of the loop: the Bitcoin community has been fighting for years over what they call the "block size increase." From its original design, Bitcoin has capped each block to 1MB, which effectively caps the transactions per second to 4 or so. Raising this limit would allow more transactions per second onto the network, but with the downside of making nodes in the Bitcoin network more costly to operate. The majority of current Bitcoin developers do not want to raise this cap. However, a large group of users and several of the earliest developers (including Gavin Andresen, the guy hand-picked by Satoshi Nakamoto) do want to raise it. There is evidence that Satoshi himself thought that the cap should someday be raised.

There was recently a compromise struck among the largest bitcoin exchanges and mining pools. It was called the Silbert Agreement, or New York Agreement, or Segwit2x. The agreement was to deploy a feature upgrade that the current developers had been pushing (called Segwit) alongside a block size increase from 1MB to 2MB. It broke a stalemate in which the big blockers had been preventing Segwit from going live, and the Segwit supporters had been refusing to increase the block size.

The deal was that Segwit would go live immediately, and several months later, the block size increase would go live. Segwit did go live as agreed, but then its proponents refused to honor the rest of the agreement (since they already got what they wanted).

That was a few days ago, and now we're seeing the backlash: lots of users and capital fleeing to "Bitcoin Cash," a separate branch that recently forked off from the traditional Bitcoin. Proponents (including Gavin Andresen) consider this new branch to be the true Bitcoin, because it's willing to scale with user demand as Satoshi Nakamoto intended. Opponents consider it to be an altcoin that's fraudulently calling itself Bitcoin, since its block size increase is a departure from the original spec.
"Conclusions: [...] Moderate coffee consumption was inversely significantly associated with CVD risk, with the lowest CVD risk at 3 to 5 cups/d, and heavy coffee consumption was not associated with elevated CVD risk."

I am confused here (with the word "inversely"). Do I understand correctly that: a) moderate consumption of coffee leads to a reduction in the risk of CVD compared to when a person does not drink coffee at all, and b) strong consumption does not affect CVD risk comparing to the moderate coffee consumption?
And those switches can go next to the ones for power to the camera, microphone, wifi, bluetooth, speakers, and anything else that I might want to be electrically disable-able, right?

Physical switches for the USB ports sound like they'd be as confusing for most people as the physical wifi switch was, when that was common. I think that means that if some manufacturer decides to introduce them, they won't be around long.
> However, neural filters only allow a signal to pass to the brain to trigger a conscious response when at least about five to nine arrive within less than 100 ms. If we could consciously see single photons we would experience too much visual "noise" in very low light, so this filter is a necessary adaptation, not a weakness.

Wonder if this is related to what I experience. Visual snow - basically seeing static in your vision, especially at night. I sometimes don't notice it for weeks, but then I just pick up on it again and can't stop noticing. It's still hard for me to believe that it's not normal, given that it happens with any camera ever built, but apparently not many people experience it.
Not necessarily. My brother, 6 years older, insists that RSS is dead, nobody uses it, and he's happy to follow the trend. He will happily chase whatever tech is fashionable to increase his perceived workforce market value. He is intelligent, but also cynical. His rationale in this and many other cases is "you shouldn't use it because people don't use it."
It very well may be that income is a confounding variable. Being able to afford 3-5 cups/day means you’re more likely to have a relatively high income, and thus a better health situation.
Just a speculation, maybe the temporary slightly elevated blood pressure from coffee is actually beneficial due to hormesis, just like stressing the body with strength or interval training is healthy in the long run as the body adapts and grows stronger.
Humanaware keybase-io
[ my public key: https://keybase.io/humanaware; my proof: https://keybase.io/humanaware/sigs/LycYlYz-C3F71pBHs9TmyH2d0OgCFuMl4IYKuNz6V9I ]
I guess you start seeing what he's done to education in the U.S, and you make your own judgment.
She backs it up with findings from brain science and behavioral science.

Did you read the article?
1) Bill Gates has been around the block a time or two. He's not a fool by any stretch of imagination.

2) It would take and awfully lot of red tape and fraudsters to undo what he has amassed.
Tube Alloys
There's a bear for every bull. You might as well go to Vegas and put it on black. At least then you can lose your money quickly instead of dragging it out over an extended period.
Also, let's say I had a month to prepare. What all material should I be going through?
Thanks for the overview. Very helpful to someone w/ no previous knowledge.

Why did the majority of developers not want to raise the block size? / How exactly does it make nodes much more expensive to operate?
>they can just call me "sometime in the afternoon".

Oh dear GOD this is possibly one of the worst phrases to ever be uttered by a human being. I have no doubt that this single phrase has stolen countless entire days or weeks of many people's life.

Waiting for your call means not doing something that I can concentrate on. I'll even avoid conversations with others while waiting for your call because I don't want to have to take your call and break a meaningful conversation or make the other person feel like your call is worth more of my time than theirs. I have to stay chained to my phone, often chained to a secluded area where I know your call and our conversation won't disturb others around me. Waiting for your call means all other appointments and events between now and your call are hereby cancelled. I'm afraid to use the restroom while waiting for your call because I fear I'll miss your call while washing my hands. I'm afraid to eat or drink- what if I get the hiccups? What if my soda pop is especially carbonated and I end up burping all during our discussion? Why am I subjected to wait on you at all? No, my entire life stops because of your choice to use this inefficient, synchronous communication medium. My life is too short to wait for your call.

Text message is OK
You would probably need more than a week if you need to revise Data Structures & Algorithms, practice problems on the whiteboard and learn about system design basics.

This Quora answer has a lot of resources.

https://www.quora.com/What-is-the-best-way-to-learn-algorith...
Phoenix is glorious 4 months of the year, tolerable another 4 and downright nasty the remaining 4.

Pretty much like many Northern states but with the seasons reversed.

(Give me heat over snow and slush any day of the year.)
Ideas for things you can use to argue for a better valuation: multiple acquirers (this is the most important by far and can easily double valuation), better understanding of the buyer's position/motivations/alternatives, macro industry trends (usually easy to find), your continued involvement over the handover period, external audits and metrics (eg. security, deliverability, user growth, etc.), team or documentation maturity, best growth metric extended over the future income projection. We've just done the final week on acquisitions in the Venture Deals course[0]. I've posted my notes for you here.[1] While some of the stuff only applies to larger deals, it shows you how such deals are viewed by mature, larger scale investors and entrepreneurs experienced with larger exits.

[0] https://kfatechstars.novoed.com/#!/courses/kfa-venture-deals...

[1] https://gist.github.com/globalcitizen/9806cfc11bd10cac7cf68e...
I wish more handwritten kanji input systems would use stroke order and count as a weight and not a filter. As a learner is generally know the stroke order when looking at an unknown kanji but as most input method filter on order and count a single wrong order or count means the matching kanji doesn't even show up in the list of possible matches
Are you joking? I lived in Seattle and so desperate about my Amazon experience.
For your logistics statement, isn't that one of China's advantage? And also, for those delivery workers, most of them are from small villages or suburb, so they are happy doing logistic in the metropolis as they can make far more than as being the farmers.
> Being able to afford 3-5 cups/day means you’re more likely to have a relatively high income.

This is false: http://news.gallup.com/poll/184388/americans-coffee-consumpt...

”Fewer lower-income than higher-income Americans drink coffee, but lower-income coffee drinkers consume more cups per day than higher-income coffee drinkers (3.8 vs. 2.4 cups, on average)."
what precisely has he done to education in the US that makes you doubt him?
"The large plot of land is about 45 minutes west of downtown Phoenix off I-10 near Tonopah."

More like Smart Exurb?
I’ve worked for Fidelity and while there’s a grain of truth here, this is mostly horseshit and conjecture.
Upgrading SQL or whatever isn’t going to happen without a very good reason because you risk fucking something up in the process. Enterprise orgs can’t move fast and break things. By definition that means they’re permanently behind the curve.
I went to a parochial school and during my spare time in 6th grade (around the time I learned to program) I would write C programs with pencil and paper, to test when I got home. Curly braces were fun. :)
There exact reasons are a point of contention. But a lot of people believe that they thought it was in their interest to keep the block size small because they hold a business interest in companies who's business plan is to make money by selling so called "second layer" solutions.

The direction of development is really controlled by a handful of people and they also have control of 3 of the historically important Bitcoin discussion forums so they were able to control the narrative for years and push out anyone who brought up contrarian opinions on the block size.
Lyft was the first company to do ridesharing. Uber was actually second or third to the market, also behind Sidecar if I remember correctly. Uber's biggest problems were the problems it caused itself through stupidity, but the new CEO appears to be making a difference in terms of changing the perception of Uber.
And still a very good distribution.
rock solid and very predictable with no weird magic stuff that may or may not work.
Do you have any source on that? I drink 3-5 cups a day and make basically nothing, and have an unrelated autoimmune disease.
That's the idea behind the Seasteading Institute - to experiment with news ways of governance.
Here's some more. I made these mistakes when typing using Pingtype, and then checking my results with my teacher.

https://pingtype.github.io

給	耠

辦	辛力辛

重	量

困	因

痕	㾗

眉	㞒

部	卶

蓑	䒾

任	仼

挑	狣

推	猚

䒷	苦

阿	冋

共	芖

休	你

衡	𧗾

一	–

幹	龫

幸	辛

我	找
The Senior Engineer’s Guide to Helping Others Make Decisions
discordians always seemed a bit too larp
Does that include the entire lower-income population, or just those who drink coffee? I'm not sure I follow how those statistics disprove the parent comment suggestion that higher income people might be more likely to drink coffee.
Yes you need a lot more tools. A backend framework with a REST API plugged to a data base is common way of doing it. Personally I use Django + Django Rest Framework a lot on the server and axios to query it on the client. But you mileage may vary.
It's done over the phone, isn't it?
> Free energy would solve any water problems.

Oh really now? I had no idea we could pull water out of our ass for any number of people at any time with free energy!
As is usual in such cases, it pays to look at the paper for all the details that the hype article leaves out.

They use prior knowledge about the sprites that can appear in the game to extract them from the video frames. The extraction result is then represented as a list of facts (sprites present, their absolute and relative locations, velocities and the camera scroll position). Learned rules are applied to these facts to derive a representation of the next frame, which is then displayed.

That means that platforms and killer objects are discovered concepts, but the features that allow their discovery (relative positions) are already hardcoded. Since most games have collision-based interactions, that is likely not much of a limitation.

The greater problem will be with hidden information. If e.g. a bomb stays black for 5 seconds after being placed before it starts blinking red and then exploding, their method would be unable to learn when the bomb should start to blink, because their representation of game state has no memory. Same with objects dropped off-screen, inventory, quest status or any other information that is relevant to the game, but not always displayed on the screen.
The alphabets are phonetic representations, and require reading in order to type.

I've made Pingtype, which lets you decompose a character into the parts, and rebuild another similar character if your handwriting recognition isn't perfect.

https://pingtype.github.io
It doesn't mean he is dumb. It just mean his agenda is not to help people but personal gain.

Gates has been engaged in a massive PR campaign on a lot of websites to gain some kind of stairway to heaven for a few years now.

You'll find than, while in the 90' we all were strongly shocked by how he managed a company so powerful, and yet engaged in lying, cheating and corrupting institutions.

But today you have many supporters claiming he is an awesome person with all his humanitarian work, publicized by social media with quite precise targeting. It seems you can get away with hitting somebody in the face and stealing his money if you come back later with pictures of all the cats you are saving.

So no. Not dumb.
Each node in Bitcoin's P2P network has to store a copy of every transaction since the beginning of time. This currently takes 140GB of disk space and is growing by 5GB per month. If more transactions are allowed to go through, it'll grow even faster. If it grows to extremely large numbers, only those who can afford the huge disk arrays will be able to run a node.

The fear is that eventually, only major companies and universities will be running Bitcoin nodes. This could make it easier for governments to threaten all involved parties into changing or dismantling the system.

However, those who want to raise the block size say that government agents threatening Bitcoin node operators is not a realistic fear. Whereas, if transactions can't go through because the network refuses to scale, then businesses will abort their plans to accept Bitcoin. To big blockers, such a scaling failure is much more likely to kill Bitcoin than government agents in dark suits.
What would make me nervous about this drop is that part drops were mostly a drop for all crypto coins. This one seems to be a move from BTC to BCH.
Ah, this would be the same Fidelity that within the last five years limited users to 12 character passwords?
> One way to think of ME

I think I am a bit out of the current state of events. Is ME short for management engine? If that is the case, what is the problem with it?
In addition to the limitations stated by sibling response, you would also need to solve the problem of image classification before you could start on real world footage; the ai in the paper was given the videogame sprites in addition to the raw footage.
> Unfortunately it doesn't work that way, the ones that DO give you the option to be 'do not call' will forward your number to other spammers, actually increasing the spam calls you get. Do not ask them to put you on the d-n-c list!

Anybody legitimate that's not true. But it's so easy to spoof your number that there are a lot of bad actors.
The hardest part for me is not the characters (I type using Pinyin, which is Romanised).

What Chinese lacks is spaces between words.

Even Korean has spaces. It makes reading a large block of text so much easier, and it helps me to identify vocabulary that I recognise.

Adding spaces and Pinyin are just a couple of the many features of Pingtype.

https://pingtype.github.io
But you have to be able to have a control. I heard Barbara Sakitt speak around 1976-77. She was the author of the widely cited "Counting Every Quantum" (1972) and she basically said that her original methodology was flawed. Unfortunately, no one cites her later work and I don't have access to the full text of "Information received from unseen lights" (1976) which I think was the paper she was presenting.
You probably have to stay on the phone while they do it though.
Thanks, we've updated it from http://www.kgw.com/mobile/article/news/bill-gates-buys-big-c....
I'm not sure if you're only thinking about buying pre-made coffee from convenience stores, Starbucks, etc. but coffee is very cheap to make yourself. It should only be cents a day unless you're using pretty high-end stuff.

Also, when it says 3-5 cups a day, that's the measurement unit "cup", not what most people would think of as "a cup of coffee". A typical size cup/mug of coffee is usually about 3-4 cups.
Desalination
awesome, thank you for actually being helpful rather than just downvoting and moving on!
Siri promised to be that revolutionary digital assistant. After 7 years of Apple buying startups and spinoffs that make the same promise, Siri is as dumb as ever. Alexa works better because it's "dumber" - a very well trained NLP wrapped around a still largely human-curated rule/knowledge database. I've heard of more realistic dumb systems, but no murmurs suggesting a revolutionary step towards AGI.

Elon Musk is a brilliant man that could become an expert on AI... but right now he is not. I trust him about as much as I trust the people that believed the first nuclear bomb would ignite the atmosphere and end all life on Earth - well-meaning concerns without a true understanding of the domain.

> AI has been a dud for the last two decades.

What? No. We're in the middle of an AI renaissance and I expect nothing less than exponential progress. However, the goal of a digital sapient is still very far away.
I can understand this for some things; for others, the phone is an interface to an email. Can you give an example?

"We'll send a service technician to you as soon as we can!"

-> Effectively an email/form that I myself could have sent

"I updated your account with this new information."

-> Effectively an email/form that I myself could have sent

"What does the error message say?"

-> Better conveyed through email/chat

If you feel like your requests are being ignored over non-phone mediums, then that sounds like a failure of the organization and not email/text/chat as a medium, at least that's how I see it.
That doesn't seem like a great idea. Like, one time my wife was hospitalized and they called to tell me. I think I would have been upset with myself if I didn't receive that call because I had installed an app to kill all calls from numbers I didn't recognize.
All good comments here, but I did want to point out that this study was originally published in 2013, according to that page. The subject line should be updated to reflect that.
Would there be any interest in a series I've been thinking of putting together about all the fantastically counterintuitive ways your eye fools you without you even noticing? Example:

https://media.giphy.com/media/3o7btPOMufN5FziFWg/giphy.gif

The fact that colors influence colors around them means that there are far more than 256^3 viewable colors: the spatial axis is like a fourth channel.

Another fun one: If you take a paper plate and poke a hole in it, then take a toothpick and stick it in front of the hole, from the bottom, pointing upwards.... Then it'll look like it's coming down from the top! It's very hard to explain in words, but basically it's a pinhole camera, so everything appears upside-down. Your brain tries to compensate and flips it right side up, but it can't quite do that with the toothpick-hole scenario. So when you push the toothpick up from the bottom, it looks like it's coming down from the top.

Lastly: https://i.imgur.com/epXYhJd.png If you cover up the top half of the image, the bottom looks gray. But the strawberries look red.

A fun puzzle is, how do you see an individual pixel? Can you think of any common object that would help you do this?
(No magnifying lenses, for example, and using a phone is sort of cheating.) Answer below.

...

Answer: pluck a hair out of your head and put it on your screen. The line along the edge of the hair will turn into a stairstep pattern, which is just another way of saying you can see individual pixels.
Cool to look at the original work on this from 1988, and see just how little it's changed in the nearly 3 decades since.

Go for instance makes use of Duff's devices generated for each architecture in its core runtime. You can see the code to generate the devices here - https://golang.org/src/runtime/mkduff.go