skysight-inc/HackerNews huggingface dataset:
Dude, your brain is still in early developmental growth mode. Trust me: limit your intake of psychedelics until later in your life. There are studies all about this. There's no huge rush to do them besides feeling cool. Your life, but you sound smart enough to want to prioritize your brain.
We've gone with B&H in the last year and they are great. They also have educational institution discounts. Plus, they don't do strange things with the shipping.
Had this happen to me - I returned an item to Fry's since it was completely nonfunctional. I explained that at the return desk. The guy nodded and took it. I wandered around the store for a while, then went to look for a replacement for the item, and saw the exact item I had just returned, back on the shelf with a small discount. I know it was the one I just returned because of the way the packaging had been cut open - they had just taped it up.

Haven't been back since.

If they are re-shrinkwrapping broken items then I guess things are even worse now since there is no way to even tell it is a return.
Meetings Are Not for You
Not only fake positive reviews, amazon postings are saturated with fake negative reviews and counterfeit and knock-off products (95% of cheap electronics). But it's not an amazon problem, it's a customer problem. Amazon monopolized online market and destroyed other sellers. If they bring order it would lead to honest prices for honest products and would allow other sellers back to the market. Why should amazon do so? It's better for them to forfeit this market than give up a share of it.
I think it's unfortunate from two perspectives:

1. I have zero experience seeing women in STEM treated badly. I'm sure it exists, but I've never seen it. Exactly the contrary. So whenever I personally see these articles, I think it's a solution looking for a problem. For example, see this article: https://www.express.co.uk/news/world/1095957/Google-news-gen...

2. I'm not sure how much Katie likes to be reduced down to what is between her legs given the combined years of dedication it took to be able to achieve the results that the team achieved.

In general, can we please applaud the people and not the identities? It's so sad to see this approach to celebrating achievements. I don't want my children to be labelled based on something they have no control over.

A silver lining in this cloud is that "normies" don't really think this way, it's just the media.
Ask HN: What is an algorithm for making the an efficient network between points?
I was looking at slime mold recently [0][1] and thought that it'd be cool to try and test its network mapping capabilities against that of a human designed algorithm, and see how they differ. Problem is, I don't know much about algorithms, and whether one for creating networks with loops even exist. I know HN has some amazing programmers here so I was wondering if someone here knew.

[0] = https://www.youtube.com/watch?v=Nx3Uu1hfl6Q
[1] = https://www.youtube.com/watch?v=2UxGrde1NDA
"Why would a product change even be allowed they're different products."

Because Amazon has chosen to allow that, for reasons which probably have to do with money.

The comments here indicate a surprising degree of naivte on this issue i.e. "I head to email jeff@amazon.com about this" - as if after 20 years of operations Amazon isn't 100% aware of all of these issues.

Of course they know what's going on. In detail.

If Amazon were some old, big, dumb company with slow moving ops, barely competent staff, then we could write all this off as lack of operational competence - but it's not.

Amazon is actually a very well run and operationally competent company from top to bottom, and Bezos is a hands-on leader, intimately involved.

Folks: Bezos knows exactly what is happening.

Since they haven't made very small adjustments which could help fix a variety of these issues, it's not due to 'lack of will' - it's a choice that Amazon has made. Amazon wants lots of 5 star fake reviews by unverified sources or they would just get rid of them, which they could do, instantly, by sidelining reviews with no purchase, for example. Among a variety of other things.

It's unbelievable the level of hagiography that goes on with these 'industry leaders' that we build up like Jobs, Zuck, Bezos, Welch etc. - especially when we have issues waiving us right in the face.

I accept that business at scale is 'making sausage' and there will be unpleasant things. Factory workers can't make $80K (probably). We inherently lose some privacy on social media. There will be some fake reviews and fraud no matter what. Surely.

But the scope and level of chicanery, combined with the fact these companies haven't made obvious changes proves they are complicit and it should definitely weigh into how we think of these companies and individuals. FYI people can do 'good stuff' and 'bad stuff' at the same time. Bezos and Zuck can build/fund schools for kids at the same time they are doing totally unscrupulous stuff, it's not a paradox.

Fraud, fake reviews etc. is a problem not dealt with remotely enough by Amazon, this is obvious and the fault/concern is theirs, and it's Jeff Bezos - as founder, owner, CEO world's richest person to do it.

Literally the richest guy in the world is gaining this wealth in part by promoting tons of counterfeit goods with fake reviews - 2019.
HN isn't the place to ask and 14 isn't the age to do it, but that's not so unusual. Find better friends, finish school. If you go into a trip with anxiety it'll just get magnified, and anxiety about things like avoiding parents isn't worth mixing up with your mental exploration imo. Everything will be 1000x easier in 5 years and you won't have lost out.
I'm using Perl 5
HN is legitimately the only place I’ve seen this complaint. I really wonder if it’s HNs buying practices that are the problem.
This post lifts out the key parts of the paper [1] and is a good summary. I think the paper is an accessible read as well.

Not too much discussion two weeks ago when the paper was posted on HN [2], so I will raise a point I've made before [3][4][5] and is consistent with the recommendations of the paper (and another post in this thread [6]): this is an opportunity to improve the terminology, mental models, and formalisms of observable state, and its implications for information hiding, privilege separation, and computer system design.

This conversation needs not only to occur among (e.g.) computer chip designers and cryptography experts, but also among higher-stack users of that technology, so that the information leakage aspects and trade-offs can be analyzed together with other performance indicators of the system.

It seems as if the haphazard, ad hoc way that chipmakers and system architects dealt with this issue have contributed to an environment where Spectre could occur: and such timing attacks were never a secret, but resistance to them in various levels of mainstream computing appears to have been fitted in a patchwork of hasty fixes and well-meaning but informal caution. The conversation around this topic could use an upgrade, and the paper's authors agree.

[1] https://ts.data61.csiro.au/publications/csiroabstracts/Ge_YC... [2] https://news.ycombinator.com/item?id=19547293 [3] https://news.ycombinator.com/item?id=17308014 [4] https://news.ycombinator.com/item?id=16165942 [5] https://news.ycombinator.com/item?id=19644997 [6] https://news.ycombinator.com/item?id=19670296
What cannot be observed even indirectly is a better phase. But even that may not be ok. Qm cannot be observed by itself and it collapses once observed. What before collapse cannot be observed. It is not even indirectly observed. Not Like quake which may break in high enough energy. Qm is based on unobserable.

The cat before you observe is ... you never know. Observe change it.
There are more fake reviews than real ones.

Due to this inversion, it is practically intractable for Amazon to detect fake reviews in a fully automated way. They must, at some point, be human moderated.
I know what you mean. It took me a while to find the original version of Napoleon Hill's "How to Think and Grow Rich" because everyone and their mother's posted $0.99 versions.

That's why I like Standard Ebooks. It's a website where volunteers transcribe public domain books into high-quality books for various eReaders. A lot of ebooks tends to suffer from poor formatting and grammar issues, but all the books on Standard Ebooks go through a rigorous proofreading process.

The book covers are quite lovely too.

I really like it.

https://standardebooks.org/ebooks/
I'll believe they are honest about caring about users privacy when they release imessage for other platforms.
There are many 3rd party sites (like fakespot.com) which do a better job than Amazon does and are not incredibly sophisticated. Amazon just doesn't care, that is the only conclusion that is possible to draw from the available data. They are not even doing a half-assed job, we're talking about a fractionally-assed job here, perhaps even milli-asses.

Amazon could easily do at least as good a job as fakespot, and then followup with consequences for review fraud. They could also implement various policies and use the huge amount of data they have available to go well beyond that level and make some headway against the problem. But they haven't done so. Because they can't be bothered. Because people being suckered into buying shitty products hasn't hurt their bottom line yet. They are complicit.
Ok I edited my answer but literally all my research indicates that it is per device - all apps irrespective of developer see the same ID. It was specifically created to replace the UDID that could never be changed at all.

So I am irked I didn’t research before editing :-/
I agree with you and with the OP. It’s great that LeBron is doing this experiment. Maybe it will better show people that investing in students is worthwhile. But at the same time, I’m frustrated at the way we’ve let this happen. Why do we have some public schools with such poor performance? It’s right there in the results this school is seeing. The school succeeds at serving this community because the people need relief. The article mentions how some of the students parents are taking classes at the school too. The school offers free food and clothing to any parents who need it.

Do you know why the school offers free food and clothes to parents, and why that’s making a difference here? Because the parents can’t afford enough healthy food, and giving them food helps them and their children do better. But seriously, why do we have children and adults who are so unable to feed themselves that they can’t think straight?

Our economy has utterly failed these people, or perhaps was never meant to serve them. And if a philanthropist has to give them groceries, it sounds like the food stamp system hasn’t been enough either.

Don’t mistake my outrage for cynicism.
This article was missing a couple of major points:

1. He doesn't say whether the RDS DB is Postgres or MySQL. The MySQL connection times tend to be much shorter than Postgres. With Postgres, it's a very good idea to put use a pgbouncer instance to implement connection pooling and have the Lambdas connect to that.
2. As others point out here, in AWS it is a very bad idea to have your RDS DB not behind a VPC. When you do that, it basically makes cold start times completely untenable for a user-facing synchronous function. Amazon has promised they are improving this situation, not sure what the status of this is.
3. Author points out some of this in his article, but caching your connection in global scope opens up a whole host of very difficult to track down bugs (e.g. you can have lots of cached connections open and thus killing your DB connection limits, needing to handle dead connections, etc.)

In my opinion, and with a lot of experience on a high traffic consumer site, it's a bad idea to cache connections in global scope. Either use MySQL or pgbouncer and connect in the function body.
This is the part of the whole internet-anger about this I've never understood.

I hate having recruiters call me. It's actively annoying. Having only Facebook recruiters call me was strictly better than the alternative that all major tech company recruiters cold call me, which started happening right after this broke.

I'm totally in favor of distributing more profits for all enterprises to workers, tech workers included, but "we agreed to not annoy one another's workers, but we're happy to hire when they apply" isn't really the story people tell. But that was my (and it sounds like your) experience of this.
Have you ever presented inside a collaboration?
Defects in core rope memory should be way easier to fix FWIW.
I’ve commented on how scammy Amazon is multiple times on here. For whatever reason I feel like there are more people on HN ready to defend Amazon than not and call out those who say it’s become scammy as “overreacting.”
There are specific taxes for specific projects. I'd say specific taxes are a good thing. For example, gas tax for roads, healthcare tax for health insurance, etc. What most people are opposed to is income tax ( which historically was only used to fund wars ).

I wouldn't classify taxes as "a good thing". I'd say it is a necessary evil or something that could be good in a limited form. If it truly was a good thing, then we should maximize the good and tax everyone at 100% and give all our income to the government.

Also, considering the poor state of our education system, healthcare, infrastructure and "wide variety of other stuff", arguments can be made that taxes aren't as good as people think. Toss in the neverending wars to justify military budgets, you could argue taxes are bad.

But I think most sensible people reject the good/bad extremes and take a moderate view. Some taxation are or can be good. It can also be wasteful and bad.
Yea, and spurious reviews are egregious on other markets such as booking.com, etc.

Booking sites dont just use fake reviews, but also hide or even delete bad reviews. I've personally seen this because I travel a lot.

As much as I dislike Google, they act as a neutral third-party for hosting hotel and restaurant reviews. Amazon howrver wants good reviews on products to make sales.
An op-ed column does not speak for the newspaper it is published in. It's literally the opposite of the editorial board. Thus the name "op-ed."

Mueller never said there was no collusion. Trump said Mueller said there was no collusion. Barr's summary quotes Mueller's report as saying “[T]he investigation did not establish that members of the Trump Campaign conspired or coordinated with the Russian government in its election interference activities.” So they didn't find proof of collusion. That is not the same as concluding that collusion did not occur.

Barr also provides this other quote from Mueller's report: “while this report does not conclude that the President committed a crime, it also does not exonerate him.”
Notre Dame Cathedral will never be the same, but it can be rebuilt
I’ve had bad experiences with B&H. I purchased a $1k+ gimbal from them for an upcoming project. I ordered it in advance so that I’d have some time to practice using it. Unfortunately, I delayed using it for a few weeks and when I finally opened the package, it was defective. When I reached them for a refund, they said there was nothing they can do as I was outside the return window. Based on my experiences with Amazon in the past I know I would have had a much better experience if I ordered from them. Regardless, I no longer trust B&H for buying expensive camera gear.
Not the OP, but one could make the argument that if forests are replanted (and they are in the US) that young trees may sequester carbon faster than old trees. Here is an interesting article: https://icp.giss.nasa.gov/research/ppa/2001/anwar/

From a carbon perspective, it may even be desirable to periodically harvest trees (not just better than oil/gas), but I think a lot more research needs to be done.
Discussion also at https://news.ycombinator.com/item?id=19669380
Unfortunately, no physical retailers around me have random things like 3D printer filament, various specific fasteners, or a particular inexpensive picture frame. Amazon wins at sheer variety of inventory.

Also, if a particular popular brand/model is at a big box store, the Amazon listing is almost certainly the actual thing. Random off-brands might be fake, but you run the same risk at Walmart as you do with Amazon then.
Absolutely. And note that in other areas (such as payment fraud) they put in a lot more legwork because the consequences actually hit them directly instead of just their customers.
YouTube Flagged Notre Dame Fire as Misinformation, Attached Article About 9/11
I've been clearing my output using nbconvert before putting the notebook into version control. I have a precommit hook and a check in CI. This works for my use case but I can understand needing to preserve output.

jupyter nbconvert --ClearOutputPreprocessor.enabled=True --inplace my_notebook_name.ipynb
The class imbalance might make the modeling slightly more difficult but certainly not 'practically intractable.'
Yes, but each database instance has a limited number of connections that can be open. You can use Lambda to handle as many web requests as you want, but if each Lambda invocation is creating a new database connection you've only shifted your bottleneck one layer down the stack.
It’s not “just” that, it’s actially the desired result of the protectionist policy, which appears to have been effective.
E-mail jeff@amazon.com
Would you be able to tell if you got this fake? I probably wouldn't unless I already had one.

https://www.wideopenspaces.com/fake-yeti-ramblers-on-the-ris...
"Online retail giant Amazon's website is flooded with fake five-star reviews for products from brands it has never heard of, consumer group Which? has claimed."

Took me about 5 times reading that to realize "it" referred to "consumer group Which?"

I think the question mark in the name helped throw me off...
That's not much at all
Just going to second this. I used to work for Virtu, which bought Getco and the smoldering pile of ashes left from Knight Capital’s meltdown almost solely for their Designated Market Maker status for so many symbols.
"you start approaching generalized AI to defeat them."

This is, of course, bullshit. Human moderators could defeat them, Amazon is just not willing to hire them. A seller reputation (including bans) could defeat them, Amazon is just not willing to lose the cheap knockoff stores. A listing fee would discourage a lot of the shadier stores, Amazon is just not willing to lose them.

It's not that it's an insurmountable problem, it's an insurmountable problem if you combine it with boundless greed.

We had the same problem a century ago. (Cf. the origins of the term 'snake oil salesman'). We solved the problem, through regulation. It's time we solve it again, through regulation.

I can pretty much guarantee that making Amazon liable for damage from fake reviews will solve the issue. It won't happen in the US - regulation is up for sale here - but it will happen in the EU. It might just be enough to drag Amazon into sanity, kicking and screaming.
Uncertainty meant discrete unit of ... limit is different from existing of the limit as an unit or time/velocity/position must exist in that limit. It is just observation cannot break that unit.

Not sure
Maybe a more optimistic interpretation is that people naturally want to try to help and would rather speak up than feel helpless even if their advice is not particularly good or useful.
I opened a Mastodon account and me and one other person I know who opened an account toot at each other every 6 months or so... I guess there is another person I know who opened one but never toots...

I try to pretend it doesn't matter to me, but calling individual posts "toots" really does keep me from talking about the service with other people.
Why is that your threshold for believing that Apple cares about user privacy? The ecosystem they've built so far has had significant time and effort invested into it to make it privacy friendly.
If zero-overhead interaction with OS APIs would still require unsafe blocks and raw pointers, a Rust implementation won't be bulletproof either.
> largely goes to 14 giant aircraft carriers

How much do you think the Navy actually costs? Crunching the numbers, the tax the corporation I work at (admittedly, not a small company) is by itself sufficient to pay for running one of those carriers.
It sounds like you saw the "Love Conquers All" version, but saw through the illusion. It's actually part of the original ending, but with all the framing of the scene removed.
Definitely check out the director's cut.
Maybe it's paranoia induced by the topic at hand, but I can't tell if your positive Amazon experience is genuine or counterfeit.
Not only that, it caused people to die. Diesel emissions are one of the most dangerous kinds of emissions from a public health perspective, especially in populated areas. Because of this emissions testing fraud diesel emissions pollution was worse in many major cities than it would have otherwise been, and the result has been unquestionably a vast loss of life (DALYs, if you prefer), no different than if someone had poisoned a water supply or sold tainted food. But because it has been so diffuse that aspect hasn't gotten quite the attention it deserves.
Thank you for this explanation. Seems weird that someone thought to downvote me for asking a simple question, because at face value, CO_2 is released from either source and one might intuitively think that chopping down a source of CO_2 sequestration is counter productive, but you addressed that concern adequately.
You may be thinking of IDFV (identifierForVendors). The IDFA usually stays the same until the user resets it.
I have to concede you're right, and that the distinction that Harris draws is not between front-running and "jellyfishing" or whatever we want to call it, but between legal front-running and illegal front-running. Here's Harris's standalone definition, which is what I remembered:

Front Running:
Front running occurs when a broker improperly allows one order to trade ahead of another. The order that goes first usually profits from the price impact of the following order. Front runners hurt the traders whose orders they front-run because they take liquidity that the front-running traders otherwise would have taken. These orders then fill at worse prices than those tat which they would have filled.

Front running is most common when a broker holds a large order that will likely move the market. The broker then trades for his own account first, or he tips off a confederate who does the front running.

Front running also hurts the brokers who represent the orders that are front-run. Broker clients who pay close attention to how well their brokers perform will discover that their brokers who knowingly or unknowingly allow others to trade in front of their orders do not trade effectively on their behalf. When their poor performance becomes apparent, the clients often direct their orders to other brokers. Firms that employ brokers must therefore be vigilant to ensure that their brokers do not cheat their clients and thereby lose business for the firm.

This seems pretty cut-and dried.

But, a little later in the book, there's a whole little subsection on "Legal Front-Running By An Observant Trader", ending with "[the front-runner's] trading is legal. Her profits come from recognizing [the broker's] shortcomings as a broker, and from noting that [the broker's] clients tend to split their orders. She is a profitable trader because she is observant and because she acts quickly on her information."

I fully concede this point.

It's of course important to retain the distinction between legitimate front-running and FINRA-style illegal front-running.