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jtcond13

170 karma · joined December 23, 2015

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jtcond13··on How accurate have Ed Zitron's AI skeptic predictions been?
Useful piece on this from Owen Lamont:

https://www.acadian-asset.com/investment-insights/owenomics/...

jtcond13··on Bletchley code breaker Betty Webb dies aged 101
"The Theory that Would Not Die" by Sharon McGrayne has a good chapter on this, book is a more general history of Bayesian statistics.
jtcond13··on Ask HN: Books about people who did hard things
Turing's Cathedral by George Dyson
jtcond13··on Ask HN: Recommend Books on Statistics
My personal favorite is Richard McElreath's "Statistical Rethinking", which covers regression and multilevel modeling from a Bayesian approach but doesn't assume too much formal math background.
jtcond13··on Engineering in the Midwest, Particularly Indiana
Yeah I'm familiar with the area (about to move from South Bend to Chicago). There's a lot of effort going into building a startup scene in South Bend, both around the Innovation and Ignition Park developments and at Notre Dame. At least a few of the companies that I'm familiar with (Vennli, Carextech) have gotten traction; the existing economy there is pretty manufacturing-heavy, especially around auto, appliances (Whirlpool) and medical devices (J&J has pretty big presence in Warsaw).

I might try and work through the area colleges (St. Mary's, Notre Dame, IU South Bend) if you're looking to recruit there.

jtcond13··on Coders Automating Their Own Job
Inter Alia, this article is another piece of evidence that a lot of pretty smart people are stuck in jobs that aren’t very complex. The accumulated cost of this to the rest of us is quite high...
jtcond13··on The Major Urban Revolution of Minor Transportation Means
Unfortunately mandatory parking minimums are written into the zoning codes of most American cities, leading to the surfeit of parking in lots of places. Undoing this will take no small amount of work.
jtcond13··on Tyler Cowen launches fellowship and grant program for moon shot ideas
It’s interesting to see the America's most prominent libertarian economist state that capital markets aren’t adequately funding risky business ventures...
jtcond13··on AMC Is Beating MoviePass at Its Own Game
I tip my cap to all the loyal users of MoviePass out there; I have long waited for the day when investors would be willing to subsidize my hobbies and you've been living in that world for months. Bravo, ladies and gentleman.

I have to wonder, though, why you'd want to go to the movies regularly these days, with all the dreck that Hollywood has been putting out in recent years. Maybe it's time for you guys to hit the $1.99 rentals on YouTube/Amazon/iTunes more often.

jtcond13··on The rise of the pointless job
Pointless jobs abound in both the public and private sectors, but I think these articles resonate because so many white collar workers are largely occupied with projects that will be cancelled before they're finished or whose end product will eventually be ignored by the people who are intended to use it. Most companies just aren't managed very well...
jtcond13··on Millennials' preferences are killing dozens of industries
+1 to this. Make them public parks that everyone can enjoy.
jtcond13··on Millennials' preferences are killing dozens of industries
You're welcome, America. Will anyone really miss Buffalo Wild Wings? Or Golf? I suspect we drink just as much beer, it's just more craft beer than Sam Adams or Corona.

The 'Millennials don't like breasts' angle is a new take. I'd figured that one was a constant.

jtcond13··on The rise of passive investors
The 'rise of passive investors' creates more opportunities for activist investors to discover overvalued/undervalued stocks. Index funds aren't affecting the prices of individual stocks. So long as the opportunity exists to make money buy buying/shorting stocks, someone will be buying/shorting stocks.

Moreover, executive compensation is still overwhelmingly set via earnings-per-share targets in a fairly transparent manner. If there's a conspiracy afoot to miss targets to benefit an industry sector, the authors haven't identified it.

I like the Matt Levine treatment of this question ('Are Index Funds Communist?'):

https://www.bloomberg.com/view/articles/2016-08-24/are-index...

jtcond13··on Eight years of victory
Anyone else subscribe to Pinboard primarily to support Maciej's writing/organizing?

It's like the fair trade coffee of online bookmarking services.

jtcond13··on Ggplot2 – The code powering all those excellent charts is 10 years old
To those of you who hate R, consider investing 1/2 hour to learn the dplyr package. Dplyr is, in my view, Hadley Wickham's real masterpiece and is why I use R for most data analysis nowadays.

As for ggplot, the 'grammar of graphics' approach makes it intuitive to get started with but I often run into trouble with both the inheritance hierarchy and with getting graphics 'the last mile' to presentation-quality.

My favorite ggplot2 graphic? The London Cycle Hires Map:

http://spatial.ly/2012/02/great-maps-ggplot2/

jtcond13··on On average, skipping college and investing tuition costs nets a higher return
These calculations seem fishy, for reasons stated above and others (e.g. why 20-year ROI? why exclude graduate degree holders?).

However, it is true that rising education costs are eating much of the ROI of attendance and lack of transparency has made it harder to see where that crossover point is.

But in a world in which the equity and college wage premiums are headed in the directions that they're headed, I would not give this advice to an intelligent 18-year-old.

jtcond13··on Pinboard Acquires Delicious
24K. See:

https://blog.pinboard.in/2016/07/pinboard_turns_seven/

jtcond13··on Ask HN: Is it a waste of time to teach yourself data science without a degree?
Good for you! Your attitude is inspiring.
jtcond13··on Ask HN: Is it a waste of time to teach yourself data science without a degree?
Writing a full reply since I don't agree with much of the advice given.

I've worked around/in data science teams at a large BigCo and I think that you're far overestimating the bar here. There aren't enough people to who can write data pipeline code (SQL/Shell/etc.), much less implement and intelligently explain statistical/ML models. Also, the average decision maker here does not understand the difference between 'created model in Pandas' and 'created model with Amazon's ML API'.

The modal background of data scientists in industry is closer to 'Econ BA + knows Python' than 'Artificial Intelligence PhD'. Moreover, the former will still enjoy a remunerative career if (s)he's sufficiently savvy about identifying problems and showing off how they can be solved with technology.

There may be a point in time when companies can't get a return by throwing math-savvy programmers at a problem, but that will be long after you and I have passed from the scene.

jtcond13··on Ask HN: Is it a waste of time to teach yourself data science without a degree?
+1 to this. SQL + Logistic regression creates millions of dollars in business value every year. Some of that could be yours!
jtcond13··on Ask HN: What are the 3 websites you visit every single day?
Hacker News, Marginal Revolution, Netflix?
jtcond13··on Ask HN: Does HN cause depression?
People who see something wrong with your question/project/link tend to be more motivated to comment, which I think explains some of what you're talking about.

The other way may be the way you use HN. There's a connection between distraction and anxiety/depression; many of us, of course, use HN as a distraction from something else we ought to be doing.

jtcond13··on Ask HN: What should I tell my cousin who wants to go to a “coding boot camp”?
I recommend John Guttag's Intro to Computation and Programming Using Python to people interested in starting to code, as the accompanying video lectures are available on MIT OCW and the book itself is enjoyable to read. That book (+ the Django tutorial) might be a good way to get started before doing a boot camp.

As others have pointed out, there are other ways to learn the material, but it may be that the 'career day' activities, etc. are worth the price of tuition.

jtcond13··on The Untold Secrets of Grand Central Terminal
My favorite Grand Central easter egg is the 'Whispering Arch' by the Oyster Bar. Standing in one corner, you can speak into the wall and be heard by someone standing in the opposite corner.

http://www.sonicwonders.org/whispering-walls-grand-central-s...

jtcond13··on APL in R
Can someone provide a motivating example here? I'm not opposed to reading this, but don't understand why I should.
jtcond13··on R for Excel Users
This article is pretty good instruction, but very good SEO. I know quite a few people asking this question.
jtcond13··on Ask HN: What is the best way to learn for the easily distracted?
+1 to "Deep Work". Cal Newport's "Straight A Student" is also worth the price if you're interested in this stuff.
jtcond13··on Authoritarians Distract Rather Than Debate
It's a reference to the nonsense 'controversies' created by Donald Trump.
jtcond13··on Show HN: ExcelJSON – Convert JSON To/from CSV, TSV Easily
This is cool but I have to wonder: what's the use case for this?
jtcond13··on H-1B Visas: U.S. Lawmaker Re-Introduces Bill to Tighten Rules
It's hard to think of another political issue on which the public has been so completely fooled. Your average man-on-the-street really thinks these go to, like, PhDs who are desperately needed in a lab somewhere. But no, they're for pumping the bottom line of Infosys, Tata, Cognizant, et. al.
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