skysight-inc/HackerNews huggingface dataset:
It sounds like LSD convinced you that you knew that stuff, without you actually knowing it. There are plenty of mental conditions where people are mistaken about what they know.

You make it sound like this is a positive thing, I'm not convinced. If LSD actually gave you that insight, then maybe. But to give you the certainty without actually having the knowledge doesn't seem valuable.

For example that snail - did you actually see him in sharp focus? Or did LSD convince you you saw him, but actually you were looking at a memory.
> What would be better is something more like OKCupid, where you're basically forced to create a pretty extensive bio for yourself, which people can use better to look for a good match.

I no longer think this is the case. I think on OkCupid, the huge bio and list of likes and dislikes tends to just serve as a way to generate reasons to disqualify someone: "Oh I could never date a vegan/Republican/heavy metal fan/cat owner/gun owner/lesbian bookshop owner." In reality, many very good relationships survive in spite of (because of?) some quirk or quirks between the two parties that seem contradictory.

On Tinder, you get enough of an idea from the photos and short bio whether someone is attractive enough and remotely in your social sphere, and then the conversation and first date let you know if your personalities click.

Answering the OkCupid personality questions was fun, and I had one very long-term relationship that came from OkCupid, but lots of my other successful relationships we probably would have disqualified each other unnecessarily.
Saunders MacLane: Category Theory for the Working Mathematician - most of the concepts implemented in this package are introduced there. I tend to dislike the "Category Theory for ___" type books, too much verbiage and misleading metaphors/analogies in many of them.
Not the full articles, just summaries and links.
I'm wrapping up the bio, read, and I gotta say... Chernow's not my favorite biographer (comparing mostly to Ray Monk's bio of Wittgenstein here). On the one hand, the amount of raw material that surfaces is amazing, and I am delighted to have read tons of the Hamilton's own writing and that of his contemporaries.

However, if anything the musical tones down the hero worship from his book, into something more palatable. When he calls Eliza going to the cottage "abandoning" him, and talks about his cheating in terms of him "being too much for her", or his rhapsodizing about him being right about the worthlessness of the French revolution vs. the American one, it starts wearing on you.

edit: Still totally worth a read.
https://news.ycombinator.com/item?id=11463434 (669 points, 2 days ago, 426 comments)
"...unusual meta-physical glitches as discrepancies within the 'order of things'."

Like... dark matter?
One way to prove this, is for us to create a simulated world smart enough that can discover itself and make its own simulated versions.
> the mere act of giving a divisive speaker an audience acts as an implicit endorsement

Giving a speaker a talk acts an implicit endorsement of all of their views? That doesn't even sound remotely true, yet you state it as if it was tautological.
That was obviously not the intent of the author's statement- to suggest that "they have so little, but are so happy." Rather, it is a common observation that the Cubans are a "confident, and undefeated" people despite years of propaganda and other measures meant to bring them to their knees.
Different strokes I guess.

My main point was that at a startup I most likely would have the opportunity to shape the engineering culture, hire people, architect, and build a company from the ground up. I wouldn't have to deal with the horrifying corporate culture that comes with any massive company.
> [A thank you to Let's Encrypt] Let's Encrypt's issuance in this event was technically correct, and thanks to their commitment to best practices like CT, we were able to discover our internal policy violation and take action to prevent these types of issues in the future. The security team at Let's Encrypt responded quickly and helpfully to our inquiries. Facebook continues to support the Let's Encrypt project and we appreciate their assistance with this investigation.

I continue to be impressed with the Let's Encrypt team's professionalism in their interactions with everyone in the security community. It makes me happy to see post-mortems like this one where everything went as it should have and the issue was resolved without any breech in security. Really reflects well on Let's Encrypt and Facebook's product security team.
(For context, I'm Canadian)

It's funny, when the news got out that the US is normalizing relations, the first thing all my friends and family remarked is that now Cuba will be 'spoiled', and we'd better get in our vacations while we still can, before Cuba's overrun with Americans.

On a serious note, everyone I know that's been has loved their time in Cuba. Most seem to think it's better than Mexico, the Dominican Republic, Jamaica, and so on (except for the food). Certainly safer.

I haven't been to Cuba myself, but I've been to my wife's country which is less developed, much more violent and unequal. It was still nice (apart from AK-47 wielding bandits, corrupt police and the fact that everyone wants to rob you because they think white people are made of money). Minus the safety concerns, I'd be OK with the level of development and living there.

The fact is, there's nothing wrong with 'poor' countries. Having a car and technology isn't all that. Having a decent house is important in Canada, but near the equator I'm OK with a shack. As long as basic needs are met, life isn't that bad.

Which is why so many Canadians (I certainly know quite a few) 'exit' the system and live in 'poor' countries.
Seeing the wire damage reminded me of this Boeing 787 fire...

http://asndata.aviation-safety.net/reports/2013/20130712-0_B...

...caused by a battery short resulting from the two wires being trapped against the case and eventually the insulation abrading through when subject to vibration. Even the highly regulated aviation industry isn't immune to simple defects like these.
Happy Birthday, Beverly Cleary
People fixate over these tiny things, little differences in the arrangement of deck chairs, as they are dying of a medical condition called aging, that might be controlled and prevented entirely if enough of them stopped fixating on tiny things and started helping to fund rejuvenation therapies.

There are startup companies now, today, working on the first rejuvenation treatments that address one of the actual root causes of aging. Oisin Biotechnologies and UNITY Biotechnology. Look them up, look up the senescent cell clearance methodologies they are turning from labwork to clinical treatment. Yet what is in the news and the thing that people pay attention to? Tiny differences in the status quo, who has a better deck chair as the ship is going down.

It is a frustrating thing to be living in the human condition.
I'm not sure what you mean - by personalize here, I'm talking about literally embedding an English readable string into the base64 encoding of the modulus as encoded in the authorized_keys file, not a comment or an option added directly.
build-essentials is an Ubuntu package which depends on a number of important libraries, gcc, the associated toolchain, etc. Just installing a pre-compiled package won't require a compiler though, it's only when you want to build something from source that you need it. There are a number of python packages that don't come pre-compiled; that may be what you were seeing.
That's still just a simple proprietary service. There's no connection to what the article focuses on. Part you can't migrate, and the part that does migrate does so with open-source tools.
I prefer to think that sounds like the average Cuban citizen is more interested in a quiet life and improving their standard of living more than complaining about political issues.

Please note in case you haven't been never in Cuba that Cubans are known for always says aloud what we thinks in any corner either in political or any other matters.
What I find interesting is how Western marketing of chocolate changed sometime in the 70's and took off in the 80's[1] to become a taboo indulgence, largely directed at women as a substitute for unrequited sexual desire. This was possibly done as a way to stem the loss of sales due to rising anti-sugar sentiment. [2]

[1] https://books.google.com/ngrams/graph?content=decadent+choco...

[2] https://books.google.com/ngrams/graph?content=unhealthy+suga...
When I saw this picture[0] I instinctively reacted with: "Ew. What's wrong with their tomatoes?"

Then I remembered that that's how all tomatoes used to look originally[1], and that their tomatoes probably taste way better than the neon-red freaks that I buy at the supermarket.

[0] https://cdn-images-1.medium.com/max/800/1*yVBQ_1SeMOk4kcib-q...

[1] https://en.wikipedia.org/wiki/Tomato#Modern_commercial_varie...
How, though? Assume a particle has some Flatten() method that is called only when it interacts with another particle. Until this is called, certain data points (let's say, anything not related to it's movement through space) could be either undefined or out of date.

When this function is called, it causes some algorithm to set up these data points. You can extend this to treat entanglement as copy-on-write style branching, where entangled particles A and B have some subset of their properties stored in the same physical memory, but calling this methods causes writing to those properties, and, thus, when the function is called for particle A, a copy of the properties is made for both A and B, and the evaluation is done for both.
Thats kind of how things go. It's a penalty for not being serious early on.
Does anyone know if the RAVPower products are any good? I have a few (4-port USB charger, 6-port USB charger, and a battery pack) and have been impressed with their performance (they are the only chargers I have found that my Vita will recognise, for example), but can't find any teardowns etc. discussing build quality.
Dumbfunded: Soylent and Vessyl (Sattire)
>Anyways, if a meditative practice seems to bring fleeting results, I'm sure you can imagine how much quicker the psychological breakthroughs on psychedelics can dissipate.

Not sure this is that obvious though -- psychedelics are strong chemicals and can produce physical changes of a scale that meditation probably can't (e.g. on a negative side, haven't heard of anyone being "fried" from too much meditation).
I think the emscripten/WebAssembly approach will win out. One of the the main reasons why Lua is so good is because it's written in strict ANSI C. Porting it to another language doesn't make sense.
> Being sentient as an experience is completely different to appearing to show sentient behaviour. You can make a model of sentience that's as complicated as you can invent, and you'll still have no idea whether or not a modelled sentience is having a sentient experience of the universe around it, or whether it's faking its responses mechanically.

If you make a brain that is physically identical to an extant human brain (let's say, your brain) then the only way you can claim that brain isn't sentient is if you claim that the original brain is also not sentient.

I mean, what do you think is going on in your head that doesn't count as "faking responses mechanically"?
Makes little sense because trees die and decay, releasing their stored carbon. We released the carbon from liquid fuels and thats how we should reset, back to liquid carbon that wont go anywhere.
Arthur Whitney's short list comparison of J to Lisp/Scheme/Clojure
Arthur Whitney recently published a short list of the commonalities between Lisp/Scheme/Clojure and the J programming language on his site [1]. Concise, but a nice comparison.
I've always favored J and Lisp, and thought they were leagues apart, but this brings some perspective to bear on this for me.
Lambda (λ) calculus vs. Lambda-mu (λμ)? I need to read up on it more.
Arthur Whitney created the K programming language, and founded Kx systems, heavily used in finance, which is known for its ability to query very large datasets with very low latency. He also wrote the initial prototype for J, along with the collaboration of Ken Iverson and Roger Hui, which was a continuation of APL, originally created by Iverson. The initial stab at J was very terse C code with lots of macros [2] that has been on HN before [3].

[1] http://kx.com/q/lisp.txt
[2] http://code.jsoftware.com/wiki/Essays/Incunabulum
[3] https://news.ycombinator.com/item?id=8533843
Split-bobbin seems to add about $0.10 to the price, raising it from $0.89 to $0.99.

So, there it is.

Good luck finding a miscreant to hold accountable if this sort of cost reduction kills someone. And even if you could hold the culprit accountable, that still can't undo the loss of life anyway.

It's all just collateral damage from the race to the bottom.
It not like a md5 hash. The hashing function is designed such that similar images will produce similar hashs. But yes if you modify it enough it will not match, you will have to modify it much more then just cropping though. They usually do very well with that.
Price aside, split bobbin construction also leads to lower efficiency since there is less effective coupling between the two sides.

It's always about tradeoffs, sort of like how you can ride a motorcycle or drive an armoured vehicle. What is safer won't necessarily be better in the other dimensions.
I got the email after the final submission, but made updates even after the final submission.
Out of curiosity, what would you do with ten Pi Zeros? I like the idea of them, but I'm not sure what I'd actually use one for.
> The reason time dilates as you approach the speed of light is because the faster a particle moves, the more the main loop must access that particle, and the more the particle's state may be in a "being processed" lock where it can't be mutated by anything else.

There's a simpler reason, I think. Any mechanism or "clock" must have moving parts of sorts (atoms, exchange particles like photons, etc.) which means that when functioning or "ticking", some parts move faster than some other parts. But if the mechanism is moving at the maximum speed, it can only be the case that some parts move at c, and others move slower, but these slower parts can never catch up, so the clock disintegrates. It can only remain whole if all parts move at maximum speed, which means it is static: it is frozen in time.

I imagine that given a speed distribution for all components of the mechanism, there would be a smooth time dilation effect as the speed of the whole mechanism increases. I'd have to calculate. In any case, I think time dilation is basically necessary in a system with a maximum speed. I'd expect to see something similar in cellular automata, regarding complex objects that can move at various speeds.
I find it odd that given that it's their own study they don't actually provide it. If this is a case of, "We did our own study. No... it's not peer reviewed. No... you can't see it. Just trust us, we did a good job." then I'm not really inclined to give it much credence.

I'm also a bit concerned with their name-and-blame approach. Even in their FAQ they surmise that it is likely that contamination came as a result of agricultural processes. Hershey's, for example, must source it's chocolate from just about everywhere. It's a BIG company. So, if Hershey's chocolate is unsafe, I've got to think that all chocolate is unsafe.

My internal pessimism make me think that this is more likely a case of an environmental group using whatever means it can to cause alarm in the populace and try to force changes in agricultural practices. What is rather unfortunate is that such tactics simply polarize opinion. It will make it more difficult to sway the opinions of those they need to convince because nobody will trust them.
Yeah, I'm sure this puff piece about the island nation ruled by a murderous dictator will do nicely in helping people know how to "think" about Cuba. Do some research on Raul Castro.
Man me too, it's an amazingly timely article.
I can't believe I never thought of doing that.
17 Best Productivity Apps That Will Boost Your Productivity and Happiness
And keep bulk-buying those noodles.
There's certainly been something changed, if not added- the idea is slowly getting more pessimistic. Plato thought we could get out of the "cave" simply through sustained rational thought. Brains-in-vats thinkers at least said we were still true beings in the "real" world, even if deluded ones. But simulationists think we're entirely beings of the "lower realm."
Yeah, except Raul Castro, you know, the dictator of Cuba is well known as a murderous thug. Please study history before dancing on the graves of his victims.
I had a similar experience (depersonalization) also caused by marijuana. Mine lasted for several months until I was back to normal-ish. It was very scary and disorienting.

For anyone experiencing this, I have three pieces of advice:
(1) Don't worry too much. Things will get back to normal, and worrying is part of the cause.
(2) Try meditating. When I started to meditate while depersonalized, the effect was incredible: it changed from a negative experience to a very positive one. I'm now actually glad for the experience overall, despite the initial scariness.
(3) Your worldview is changing. Try not to fight it too much.
It's been under ruthless attack by the world's most militant nation, which forces Guantanamo Bay there and demands other nations besiege it with sanctions. Due to its disobedience, it nevertheless does unusually well all things considered.
Not much overall info here, but with just my imagination filling things in...Yeah it could be cool.
I also recently had the chance to visit Cuba. Incidentally, I was there the day Alan Gross was exchanged for the last of the Cuban Five and the announcement of detente was made. I've been to 39 countries by last count, and this trip was among my favorite.

One of the most radical things about my experience was that I traveled directly from San Francisco, and the two places could hardly feel more different. Walking down Market Street, the full breadth of American inequality is on display like nowhere else. As poor as Central Havana is, you simply don't observe the same level of open desperation. One might say their government makes this so, but it's actually our government that imprisons the largest percentage of its citizens of any country in the world. Look, I'm not saying I would live in Cuba over the USA, but I do think we should be doing a far better job caring for our most vulnerable.

Here's my reflection on the experience: https://alanjaytravel.wordpress.com/2015/12/31/cuba-go/
> a laundry list of caricatures of political, sexual, and religious attitudes

I assume that the bit you quoted was a reference to the recent events at Emory University.
Or people who have ...disassembled the locked down original?
Ask HN: How can one improve Math skills needed for a software engineer?
I am a CS student and do not have a solid background in Math!
I do not know where to start working on my math skill. I could pass the algorithm course while struggling with calculus; I am graduating next semester, do you have any suggestion? or know any source for making quick progress.
Disregarding "the inherent limits of musical theater as a venue for policy analysis", this is a great look at the underlying issues in Cabinet Battle #1. http://www.vox.com/2015/11/27/9771784/hamilton-cabinet-battl...
> Today we have one political party that seems completely unwilling to compromise and another that's heading that way.

Perception is an interesting thing. Many of us believe one party has compromised too much and caved, being steam rolled by the party that won't compromise a thing even when their majorities are taken away.

Hamilton actually did a pretty good job at an amazing compromise involving the location of the capital and debt responsibility. Both sides got something of worth, and it probably was a part of keeping the states together.
Even better: N3980 [1]

This proposal decouples the implementation of hash functions from how types get hashed.

[1] http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n398...
Ad blockers will eventually do to the content industry what file sharing has done to the music industry: it will make it impossible to make a living at it unless you are part of a very large corporation, mostly because they have other businesses to subsidize the unprofitable content models.

Even podcasts don't do that well as a business. The longest lasting podcasts are the ones that are essentially one large advertising vehicle for products or services owned by the individual or company running the podcast.

open source, another example of this, has pushed many individuals out of business because they give away many of the same set of features for free and then charge for support. A support company doesn't scale well with a single person or even a couple. This is why pretty much all popular open source projects are funded by large corporations. I can't think of one that isn't.

The pattern has been pretty clear in the last decade: push to give something away for free, the big corps take over because the individual can't compete with free, complain that big corps are ruining everything, and the latest: we now need a basic income because there are no jobs left.

Money is a necessary evil. It can give even the individual more power over their own life. I'm just surprised that so many people here advocate the voluntary shift in power away from the individual and into the hands of big corporations.

I guess I shouldn't be surprised. The whole progressive movement does exactly this. In the Nordic countries for instance, it's nearly impossible to run your own company due to the crippling taxes and regulations involved. Your only choices for employment are big corporations and the government.
That method gives an answer for one possible simulation- the experimenter's own brain. But it doesn't seem to suggest a means of determining what other simulations do or don't sustain sentience, so its far from a total solution.

When people suggest that science has things pretty much figured out by now, this sort of thing is one of the (many) counterexamples that I offer.
You can buy chemical reagent tests that will give you reasonable certainty that what you're taking isn't meth/something else, but you're right that there's always a risk when taking an unknown substance that it could be a as yet unknown research chemical or cut with something else.
It's a lesson that things don't have to be perfect to be able to ship.
I think the majority of the Impossible Project's marketing is already aimed at the fine art community and instant photography enthusiasts. Many people in those groups had been spending excessive amounts on expired Polaroid film prior to the project's creation.

I'm hoping this is a high-end camera. They already have the low-end market covered by the decades of old Polaroids lying around. I have an excellent 600 Business Edition ($30 ebay) and don't really feel the need to upgrade.