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How we learned to stop having fun

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In a recent, fascinating piece in the Guardian, acclaimed author Barbara Ehrenreich explores the roots of modern depression, and tracks it very specifically to Europe in the early 17th century. Of course, "melancholy" had been known throughout recorded history -- the Greeks record battling it in pre-Christian times -- but this was something new; a debilitating variant on the blues that had people writing about their feelings and tossing themselves from castle turrets in record numbers. So what happened? Here are some of Ehrenreich's answers:

"Something was happening, from about 1600 on, to make melancholy a major concern of the reading public, and the simplest explanation is that there was more melancholy around to be concerned about. Concomitant with a rise in depression was a decline in traditional Bacchanalian festivities throughout Europe (for which we can, at least in part, blame the Reformation), both of which are symptomatic of some deeper, underlying psychological change, which began about 400 years ago and persists, in some form, in our own time. The second, more intriguing possibility is that the disappearance of traditional festivities was itself a factor contributing to depression."

More after the jump.

"Historians of European culture are in substantial agreement," Lionel Trilling wrote in 1972, "that in the late 16th and early 17th centuries, something like a mutation in human nature took place." This change has been called the rise of subjectivity or the discovery of the inner self and since it can be assumed that all people, in all historical periods, have some sense of selfhood and capacity for subjective reflection, we are really talking about an intensification, and a fairly drastic one, of the universal human capacity to face the world as an autonomous "I", separate from, and largely distrustful of, "them". The European nobility had already undergone this sort of psychological shift in their transformation from a warrior class to a collection of courtiers, away from directness and spontaneity and toward a new guardedness in relation to others. In the late 16th and 17th centuries, the change becomes far more widespread, affecting even artisans, peasants, and labourers. The new "emphasis on disengagement and selfconsciousness", as Louis Sass puts it, makes the individual potentially more autonomous and critical of existing social arrange-ments, which is all to the good. But it can also transform the individual into a kind of walled fortress, carefully defended from everyone else.

Mirrors in which to examine oneself become popular among those who can afford them, along with self-portraits (Rembrandt painted more than 50 of them) and autobiographies in which to revise and elaborate the image that one has projected to others.

As Tuan writes, "the obverse" of the new sense of personal autonomy is "isolation, loneliness, a sense of disengagement, a loss of natural vitality and of innocent pleasure in the givenness of the world, and a feeling of burden because reality has no meaning other than what a person chooses to impart to it." The flip side of the heroic autonomy that is said to represent one of the great achievements of the early modern and modern eras is radical isolation and, with it, depression and sometimes death.

Which is preferable: a courageous, or even merely grasping and competitive, individualism, versus a medieval (or, in the case of non-European cultures, "primitive") personality so deeply mired in community and ritual that it can barely distinguish a "self"? From the perspective of our own time, the choice, so stated, is obvious. We have known nothing else."

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iStock // Ekaterina Minaeva
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Man Buys Two Metric Tons of LEGO Bricks; Sorts Them Via Machine Learning
May 21, 2017
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iStock // Ekaterina Minaeva

Jacques Mattheij made a small, but awesome, mistake. He went on eBay one evening and bid on a bunch of bulk LEGO brick auctions, then went to sleep. Upon waking, he discovered that he was the high bidder on many, and was now the proud owner of two tons of LEGO bricks. (This is about 4400 pounds.) He wrote, "[L]esson 1: if you win almost all bids you are bidding too high."

Mattheij had noticed that bulk, unsorted bricks sell for something like €10/kilogram, whereas sets are roughly €40/kg and rare parts go for up to €100/kg. Much of the value of the bricks is in their sorting. If he could reduce the entropy of these bins of unsorted bricks, he could make a tidy profit. While many people do this work by hand, the problem is enormous—just the kind of challenge for a computer. Mattheij writes:

There are 38000+ shapes and there are 100+ possible shades of color (you can roughly tell how old someone is by asking them what lego colors they remember from their youth).

In the following months, Mattheij built a proof-of-concept sorting system using, of course, LEGO. He broke the problem down into a series of sub-problems (including "feeding LEGO reliably from a hopper is surprisingly hard," one of those facts of nature that will stymie even the best system design). After tinkering with the prototype at length, he expanded the system to a surprisingly complex system of conveyer belts (powered by a home treadmill), various pieces of cabinetry, and "copious quantities of crazy glue."

Here's a video showing the current system running at low speed:

The key part of the system was running the bricks past a camera paired with a computer running a neural net-based image classifier. That allows the computer (when sufficiently trained on brick images) to recognize bricks and thus categorize them by color, shape, or other parameters. Remember that as bricks pass by, they can be in any orientation, can be dirty, can even be stuck to other pieces. So having a flexible software system is key to recognizing—in a fraction of a second—what a given brick is, in order to sort it out. When a match is found, a jet of compressed air pops the piece off the conveyer belt and into a waiting bin.

After much experimentation, Mattheij rewrote the software (several times in fact) to accomplish a variety of basic tasks. At its core, the system takes images from a webcam and feeds them to a neural network to do the classification. Of course, the neural net needs to be "trained" by showing it lots of images, and telling it what those images represent. Mattheij's breakthrough was allowing the machine to effectively train itself, with guidance: Running pieces through allows the system to take its own photos, make a guess, and build on that guess. As long as Mattheij corrects the incorrect guesses, he ends up with a decent (and self-reinforcing) corpus of training data. As the machine continues running, it can rack up more training, allowing it to recognize a broad variety of pieces on the fly.

Here's another video, focusing on how the pieces move on conveyer belts (running at slow speed so puny humans can follow). You can also see the air jets in action:

In an email interview, Mattheij told Mental Floss that the system currently sorts LEGO bricks into more than 50 categories. It can also be run in a color-sorting mode to bin the parts across 12 color groups. (Thus at present you'd likely do a two-pass sort on the bricks: once for shape, then a separate pass for color.) He continues to refine the system, with a focus on making its recognition abilities faster. At some point down the line, he plans to make the software portion open source. You're on your own as far as building conveyer belts, bins, and so forth.

Check out Mattheij's writeup in two parts for more information. It starts with an overview of the story, followed up with a deep dive on the software. He's also tweeting about the project (among other things). And if you look around a bit, you'll find bulk LEGO brick auctions online—it's definitely a thing!

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Opening Ceremony
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These $425 Jeans Can Turn Into Jorts
May 19, 2017
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Opening Ceremony

Modular clothing used to consist of something simple, like a reversible jacket. Today, it’s a $425 pair of detachable jeans.

Apparel retailer Opening Ceremony recently debuted a pair of “2 in 1 Y/Project” trousers that look fairly peculiar. The legs are held to the crotch by a pair of loops, creating a disjointed C-3PO effect. Undo the loops and you can now remove the legs entirely, leaving a pair of jean shorts in their wake. The result goes from this:

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Opening Ceremony

To this:

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Opening Ceremony

The company also offers a slightly different cut with button tabs in black for $460. If these aren’t audacious enough for you, the Y/Project line includes jumpsuits with removable legs and garter-equipped jeans.

[h/t Mashable]

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