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heydenberk

3,710 karma · joined January 2, 2011

http://twitter.com/heydenberk
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heydenberk··on Workplace by Facebook opens to sell enterprise social networking to the masses
Sorry you're being downvoted. This is useful information that allays some of my concerns. Thanks.
heydenberk··on Workplace by Facebook opens to sell enterprise social networking to the masses
I dread one day having to limit job searches to places that don't make me use my private social networking account to do business.
heydenberk··on Evidence suggests women's ovaries can grow new eggs
From your article: "The natural ability to have a child at an older age likely indicates that a woman’s reproductive system is aging slowly, and therefore so is the rest of her body."
heydenberk··on Switzerland is the world’s most competitive economy
I was making this point a few weeks ago and after looking into it more, I still think it's a valuable point to raise, but the truth is more nuanced than I expected.

States in the US vary in nominal GSP per capita by only 2x — from Mississippi at $35K to Delaware at $70K. In the EU, it ranges from Bulgaria at €6K to Ireland at €55K. (This excludes DC and Luxembourg, which are outliers in many ways.)

In fact, even Mississippi, the poorest US state, is wealthier than the EU average (€28K, about $31K)! Only the wealthiest EU countries are wealthier than Mississippi: Luxembourg, Ireland, Denmark, Sweden, Netherlands, United Kingdom, Austria, Finland, German, Belgium, France. And of those, only Luxembourg and Ireland have a higher GDP per capita than the US average.

So the EU member states vary economically far more than the states in the US do, and the US is more easily characterized as a uniformly "high income" region than the EU is.

Mississippi's GDP per capita being similar to that of France, Italy or Spain is really hard to reconcile with the fact that many of us would love to live in the latter countries and couldn't be paid to move to Mississippi.

heydenberk··on First 'three person baby' born using new method
Notably, this prevents transmission of a disease that is "fatal to any baby conceived", which makes this as uncontroversial a case of a "designer baby" as I can imagine. After this, the ethics get much more complicated.
heydenberk··on Twitter may receive formal bid, suitors said to include Salesforce and Google
> Anyone that takes over the company is going to be doing massive layoffs.

Rapidly-growing tech behemoths like Google can afford to acquihire hundred of engineers and, eventually, assign them to other work.

heydenberk··on 1 in 5 Seafood Samples Is Fake, Report Finds
It matters for organic food, because people buy organic food for ethical reasons that don't necessarily have any relationship to quality.
heydenberk··on Airbnb Adopts Rules in Effort to Fight Discrimination by Its Hosts
But they're not mandating instant booking.
heydenberk··on Airbnb Adopts Rules in Effort to Fight Discrimination by Its Hosts
This is either largely unrelated to the original post or intensely problematic. You would do well to reconsider what you have written here and how it relates to the topic at hand.
heydenberk··on iPhone 7
I imagine it's fairly common, since streaming music (even over WiFi) drains the battery.
heydenberk··on A Universe Made of Tiny, Random Chunks (2013)
Indeed. https://en.wikipedia.org/wiki/Planck_time
heydenberk··on The Math Myth
I'm cobbling it together — I looked at what the requirements were for various universities' math degree programs and then found classes on Coursera, MIT OCW, etc., which matched those as well as possible.

I've also found QuantStart's guide[0] to be a particularly good resource, but bear in mind that is oriented toward learning quantitative finance (in which I have no particular interest per se).

[0] https://www.quantstart.com/articles/How-to-Learn-Advanced-Ma...

heydenberk··on The Math Myth
I have relatively little mathematical education and have been seeking to correct that by self-educating over the last year, so I have a certain bias. Nonetheless, I disagree with the key points of this article.

The article asserts that most modern professional jobs requires only "Excel" and 8th grade programming. In my experience, over-reliance on software like Excel rather than a basic competency in numerical programming is a hindrance to economic growth. Spreadsheet-based numerical programming is opaque and ill-suited to interoperation. This leads to subtle errors, duplication of work, difficulty of replication and silo-ing of meaningful results in the private sector, the public sector and academia.

I take the second point that the transferability of critical thinking skills developed by learning mathematics is unproven. Nonetheless, history is flush with anecdotal evidence of this hypothesis, and in the absence of empirical evidence, it seems unwise to reject that hypothesis out of hand.

EDIT: removed an assertion that the article was poorly argued.

heydenberk··on Atom 1.10 and 1.11 beta
Trick question.
heydenberk··on Writing Less Code
This domain is really throwing me for a loop.
heydenberk··on For a Better Economy, Add Commuter Rail?
The train between Boston and Providence is usually faster than driving even when there is no traffic, and Boston often has pretty bad traffic.
heydenberk··on News Feed FYI: Further Reducing Clickbait in Feed
It would be gamed. The people who have the most incentive to take part in a "crowdsourced" labelling exercise to reduce clickbait are, of course, the people generating the clickbait.
heydenberk··on Huge no. of files for Angular 2
I have 16 copies on my work computer.
heydenberk··on Looking for life on other planets? Go deep
Finding any extraterrestrial life is much more interesting than finding any specific kind of ET life. Having an n > 1 for biology would be one of the most profound advancements in the history of science.
heydenberk··on Google Cuts Its Giant Electricity Bill with DeepMind-Powered AI
One might assume, though, that Google could've applied more homegrown ML to the same problem and achieved significant savings as well.
heydenberk··on Innovative container ship features hemispherical bow
At hundreds of miles an hour, isn't wind resistance orders of magnitude stronger than rolling friction? If you live somewhere with even moderate wind, and that wind doesn't always blow in the same direction, you'd want to take off with the wind and land against it, which would cause problems when that meant landing on the downslope or taking off on the upslope. I suppose you could mitigate that by having runways that slope up and to the east, down and to the east, etc.
heydenberk··on On the Complexity and Performance of Parsing with Derivatives
Summary of parsing with derivatives (Brzozowski 1964) for the unfamiliar (like me):

  For example, with respect to the character f, the derivative
  of the language for which [[L]] = {foo, frak, bar} is
  Df (L) = {oo, rak}. Because foo and frak start with the
  character f and bar does not, we keep only foo and frak
  and then remove their initial characters, leaving oo and rak.


  We repeat this process with each character in the input
  until it is exhausted. If, after every derivative has been performed,
  the resulting set of words contains the empty word,
  then there is some word in the original language consisting
  of exactly the input characters, and the language accepts
  the input. All f this processing takes place at parse time, so
  there is no parser-generation phase.
The specific algorithm they build off (Might 2011) has extended this to memoize repeated derivations of the same arguments and to allow for lazy evaluation in the case of recursion.

But this algorithm was implemented in a mind-bendingly-slow way:

   For example, they report
  that a 31-line Python file took three minutes to parse!
They prove that the worst case is actually cubic time and provide a concise cubic-time implementation in Racket: https://bitbucket.org/ucombinator/derp-3

Their implementation is orders of magnitude faster of prior PWD implementations, but still orders of magnitude slower than a Bison parser of the same grammar, which they attribute to language choice (C vs Racket).

Please correct me if I'm wrong about any of this! Summarizing research like this helps me understand it, but that doesn't mean I actually understand it.

heydenberk··on Governor Brown's housing proposal could mean sweeping Bay Area changes
Philadelphia allows any individual member of city council to veto any construction project for any reason[1]; it's called "councilmanic prerogative", and it is unsurprisingly linked to a number of corruption cases as well as some very murky cases of political retribution[2].

[1] https://www.seventy.org/publications/2012/01/04/councilmanic... [2] http://www.phillymag.com/citified/2016/05/09/kenyatta-johnso...

heydenberk··on How fast can we make interpreted Python? (2013)
Previous posting: https://news.ycombinator.com/item?id=6112995

25 comments and good discussion there.

heydenberk··on Facebook is the new Excel
Facebook is 1 year older than reddit and makes 2,000x the revenue.
heydenberk··on Performance of ES6 features relative to ES5
These measures are JS performance are important for VM implementors, for people writing node.js applications to be used at large scale and people doing computationally-complex work in the browser (eg creating physics engines).

It's worth noting that for most of us, most of the time, this kind of JS performance is less important than user-perceptible optimizations, like batching DOM reads and writes and decreasing asset size

heydenberk··on Uber losing $1B a year to compete in China
Presumably, the ROI on penetrating the world's largest market is significantly higher than the ROI on a marginal increase to their dominant market share in North America.
heydenberk··on Google engineer finds USB Type-C cable that’s so bad it fried his Chromebook
The issue isn't the standard, but that compliance is not regulated by the retailer, the wholesaler, the standards body or the government, which is why consumers are trying to effectively regulate it themselves.
heydenberk··on New European, U.S. data transfer pact agreed
Morbidly curious about how Schrems is going to Schrems this one up.
heydenberk··on Some of the most popular games get the least respect from game enthusiasts
The rules of chess are, in fact, complicated and inelegant compared to the rules of Go.
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