Is This the Most Played Song in Music History?

March 6th, 2015

What is the most played song ever?

Nobody famous sang this tune. It was never a hit single and got almost no play on Top 40 radio. There’s even a dispute over the exact title. Yet “It’s a Small World,” also known as “It’s a Small, Small World” and “It’s a Small World (After All),” is very likely the most played song in music history — nearly 50 million times. And it was first heard 50 years ago this month [April, 2014].

Various sources cite the Righteous Brothers’ “You’ve Lost That Lovin’ Feelin’” (1964) as having more than eight million plays on radio and TV, and The Beatles’ “Yesterday” (1965) with at least seven million in the U.S. alone, and many more in the rest of the world. Irving Berlin’s “White Christmas,” introduced by Bing Crosby in 1942, has inundated the airwaves ever since, but for only a few weeks each year. There’s little debate that Patty and Mildred Hill’s “Happy Birthday to You” (originally “Good Morning to You”) has been performed more than any other song, but not in public; if you do, and don’t pay royalties, the possessive copyright holders at Warner/Chappell Music will sue your pants off — and take all your birthday gifts, too.

That leaves “It’s a Small World,” composed by Disney staff writers Richard and Robert Sherman for the 1964-65 New York World’s Fair pavilion ride officially known as “PEPSI Present’s Walt Disney’s ‘It’s a Small World’ — a Salute to UNICEF and the World’s Children.” In his authoritative 1998 book Songwriters: A Biographical Dictionary with Discographies, Nigel Harrison proclaims the song “the most performed composition in the world.” Richard Sherman, the surviving brother, thinks so too.

The Best Lifestyle Might be the Cheapest Too

March 6th, 2015

If you were to build a city from scratch, using current technology, what would it cost to live there? Scott Adams thinks it would be nearly free, because we know how to build homes that use zero net energy, greenhouses could provide food, etc. His ideas sound rather utopian, but one of the less utopian ones occurred to me a while ago — only I wouldn’t want Astroturf:

Now assume the homes are organized such that they share a common center “grassy” area that is actually artificial turf so you don’t need water and mowing. Every home opens up to the common center, which has security cameras, WiFi, shady areas, dog bathroom areas, and more. This central lawn creates a natural “family” of folks drawn to the common area each evening for fun and recreation. This arrangement exists in some communities and folks rave about the lifestyle, as dogs and kids roam freely from home to home encircling the common open area.

That sort of home configuration takes care of your childcare needs, your pet care needs, and lots of other things that a large “family” handles easily. The neighborhood would be Internet-connected so it would be easy to find someone to watch your kid or dog if needed, for free. My neighborhood is already connected by an email group, so if someone sees a suspicious activity, for example, the entire neighborhood is alerted in minutes.

This is one facet of New Urbanist design, as in the Mueller Community, which sprang up to replace the Austin municipal airport after it closed 16 years ago:

A research team from Texas A&M University polled Mueller residents and what they found was striking. After moving here, respondents said, they spend an average of 90 fewer minutes a week in the car, and most reported higher levels of physical activity.

The poll results seem to validate new-urbanist gospel: good design, like sidewalks, street lighting, extensive trails and parkland, can improve social and physical health. Several mornings a week, a group of retired guys power walk through Mueller.

“We’ve lost weight. We’re certainly more fit than we used to be,” says Don Dozier, a retired accounting professor. He and his wife, Janelle, moved here in 2008 from a conventional subdivision south of Austin that had no sidewalks. “I think probably the main thing is that we have made an incredible number of friends,” he adds.

This social engagement is what a lot of residents mention. Frosty Walker, a retired TV cameraman, recalls the cul-de-sac where he used to live in northwest Austin.

“It was one of those situations that you would come into your house, and if a neighbor came, the garage door went up, the car went in the garage, the garage door went down,” Walker says. “You would see each other and wave every once in a while, and that was pretty much the extent of your relationships.”

You can never be progressive enough, NPR reminds us:

Mueller seems to have it all: electric cars, solar panels, green buildings, walkability and native landscaping. But what happens when one of Austin’s most progressive, welcoming neighborhood confronts racial incidents involving some of its own African-American residents who don’t feel so welcome?

Fraud Comes to Apple Pay

March 5th, 2015

Apple has gone to great lengths to secure Apple Pay:

It uses a “secure element” within the latest iPhones to store the encrypted payment data separate from the rest of phone. It uses a fingerprint reader to assure that the phone’s owner is making the purchase and issues a one-time code so merchants don’t see customers’ credit card information.

However, the weakness identified by Abraham occurs at an earlier stage, when a user is adding a credit card to Apple Pay. When a user adds a card, Apple says it sends information such as the type of phone, the last four digits of the user’s phone number and the user’s general location to the issuing bank, which decides whether to provision the card for Apple Pay.

Banks can ask for additional information if its information doesn’t match Apple’s. In those cases, a bank may ask a user to call in to answer additional security questions. Abraham says that some banks made it too easy for such customers to be approved, because they wanted to reduce the friction of adding their cards to Apple Pay. For example, he said some banks asked for the last four digits of a customer’s Social Security number, which is easy to answer if the fraudster knows that person’s credit history or personal information.

Flow Hive

March 5th, 2015

The Flow Hive simplifies the process of getting honey from bees:

Flow frames have a partially formed honeycomb matrix within a transparent frame. Bees complete the comb, fill the cells with honey and cap them. To harvest the honey, the beekeeper inserts a tool into the top of each frame and twists, a move that splits each cell in the honeycomb vertically, allowing the honey to flow freely. It is collected at the bottom through a tube. Presto! Honey on tap.

Flow Hive Animation

Traditionally, the beekeeper must split the boxes of the hive, smoke the bees to calm them, remove the frames, cut the wax caps from the honeycomb, then extract and clean the honey. It’s a long, tedious process with a lot of heavy lifting, not to mention the occasional sting. Given how messy it is to harvest honey from honeycomb cells, it’s easy to see why apiarists swarmed to the Flow Hive when it hit IndieGoGo earlier this week. It took just five minutes for the Flow campaign to reach its modest goal of $70,000, and the campaign has now passed the $3 million mark.

Warby Parker Sees the Future of Retail

March 5th, 2015

Fast Company praises hyper-hipster eyewear-retailer Warby Parker for its fanatical focus on execution and brand:

By designing and manufacturing their own frames and selling directly to consumers over the Internet, they’re able to charge as little as $95 per frame, a fraction of what a similarly nice pair of glasses would cost at a typical optical shop. That price also includes prescription lenses, shipping, and a donation to a not-for-profit such as VisionSpring, where Blumenthal previously served as director.

[...]

Last July, just four years after their launch, Blumenthal and Gilboa announced that they had distributed their millionth pair of glasses, up from 500,000 just a year before. According to a person familiar with the company’s finances, annual revenue is “well over” $100 million. The fashion press has been impressed and so have investors, who have put in more than $115 million to date, which Blumenthal and Gilboa are investing in an expanded product line that includes progressive lenses and, of course, a fast-growing retail presence.

[...]

“A lot of subtleties go into a brand,” says Sasha Tulchin, the company’s director of creative services, who came to Warby by way of Tory Burch and Cole Haan. Tulchin invokes the dinner-guest metaphor as well, imagining the Warby Parker brand as “quick-witted, but wears her intelligence lightly. Looks sharp without planning to. Takes a dare. Always offers to help with the dishes.” Tulchin goes on to cover Warby Parker’s preferences in graphic design, color palette, and serif and sans serif fonts (Utopia and Proxima Nova). “The Warby Parker voice is witty, intelligent, informative, playful, delightful. We are not trite, pretentious, sarcastic, long-winded,” she says. “Every time we create a piece of copy, every time we create something new for marketing — every time it’s either in our office or externally projected — we do it with these filters.”

This carefully cultivated persona is at least in part Blumenthal himself, who still reads (and rereads) every written word that his company puts out into the world. “This is five years in, a 500-person company, and the CEO is approving every marketing message the company puts out,” Lerer says with awe. “Every CEO does that in the early days. You do it with 10 people, and if you’re good you do it with 25 people. You don’t do that when you have 500 people. Neil still does it.”

Behold our new aristocracy:

Blumenthal has long been the company’s public face, but it was Gilboa who first landed upon the idea that became Warby Parker. Born in Sweden to a pair of doctors, Gilboa is even-tempered, quiet, and analytical, speaking with an uninflected precision that can seem at once removed and intense. As a teenager growing up in San Diego, Gilboa tells me, he’d often accompany his father to the hospital, hoping to learn as much as he could about various medical specialties. “I was 100% convinced I was going to be a doctor, and I was just trying to decide which kind of doctor,” he recalls.

While he was a premed student at the University of California, Berkeley, Gilboa learned about HMOs, which convinced him that he might want to look for other options. He wound up in business, first at the consultancy Bain & Company and then the boutique investment bank Allen & Co., before returning to school to enroll simultaneously at Wharton and in a biomedical engineering master’s degree program at the University of Pennsylvania’s engineering school. (“He’s the smart one,” Blumenthal says, chuckling, as Gilboa tells his story.)

A few weeks before starting school, Gilboa left a pair of $700 Prada frames in an airplane seat-back pocket. “I’d just bought the iPhone for $200 and it did all these magical things that people wouldn’t have believed even a few years earlier,” he recalls. “Meanwhile, a pair of glasses: The technology has been around for 800 years. It didn’t make sense that I was going to have to pay that much for a new pair of glasses.” He complained about this to Andy Hunt, his study-group partner, who was, like Gilboa, a former finance guy and a glasses wearer. “We started talking about why glasses were so expensive,” Gilboa continues. “Then we learned a little bit about Luxottica.”

Founded in 1961, the Milan-based company takes in about $9 billion a year, running the eyewear business for most major fashion houses, including Armani, Chanel, Prada, and Ralph Lauren. Luxottica markets its own frames too: Oakley, Oliver Peoples, Persol, and Ray-Ban are all Luxottica brands. Consumers find these frames for sale at LensCrafters, Pearle Vision, and Sunglass Hut, all of which are (you guessed it) Luxottica subsidiaries. Luxottica also happens to own one of the top vision-insurance companies, Eye-Med, which, if you have coverage from Aetna or Anthem Blue Cross Blue Shield, is your carrier.

Luxottica is in fact so powerful in the $65-billion-per-year eyewear industry that Gilboa and Hunt likely would have moved on to other ideas had they not heard about a kid in their MBA classes who knew more than pretty much anyone else in the world about how to work outside of the traditional eyeglass-supply chains. “There’s always a moment of serendipity in any startup,” Hunt says. “For us, it was meeting Neil. The company couldn’t have existed without him.” (The fourth cofounder, Jeffrey Raider, happened to be sitting in the computer lab next to Blumenthal when Gilboa and Hunt broached the idea. He worked at an private equity firm after Wharton and eventually cofounded Harry’s, the Warby Parker of men’s grooming.)

In person, Blumenthal cuts an unusual figure. He has a tendency to speak in the looping manner of Woody Allen dialogue, and he’s physically goofy with a geeky affect that is heightened by the (nonprescription) glasses he wears every day. Yet he is remarkably light-footed in social settings. The son of a tax consultant and a nurse, he grew up in Greenwich Village — a savvy New York City kid with an entrepreneurial streak. As an 8-year-old, Blumenthal persuaded his parents to order him an As-Seen-on-TV food dehydrator and attempted to start a dried-fruits stand on Mercer Street. By high school, he was taking advantage of the city’s lax attitude toward underage drinking and moonlighting as a club promoter. “You partied for free, you got paid — and you got to deliver this amazing service to your friends,” he says, flashing a sheepish smile. “So maybe that was my first triple-bottom-line business.” (Since 2011, Warby has been a certified B Corporation, considering its environmental and social impact in addition to its profitability.)

In college at Tufts, Blumenthal double-majored in international relations and history and dreamed of becoming secretary of state. He took the foreign-service exam and did well, but not well enough and, a few months after graduation, and wound up with a fellowship in El Salvador, where he helped shape VisionSpring’s now-famous market-based approach to philanthropy: Rather than simply give away free eyeglasses, the organization supplies frames to entrepreneurs to sell to their neighbors. (The strategy has won numerous accolades, including three Fast Company Social Capitalist awards, and has been adopted by organizations such as Toms Shoes and Matt Damon’s Water.org.) “That’s when the entrepreneurial thinking kicked in for me,” Blumenthal recalls. “I was trying to understand how we could get entrepreneurs to spend more time selling glasses, doing margin analysis, going over to China to try to source glasses at lower cost.” In other words, Blumenthal’s experience was a perfect match for Gilboa’s idea. When Warby Parker launched, it included a buy one, give one feature through a partnership with VisionSpring.

Although Blumenthal technically oversees Warby Parker’s stores and marketing while Gilboa tackles customer service and technology, the duo are, in fact, jointly responsible for all major decisions. The arrangement allows them to be more hands-on than might be possible in a typical high-growth startup, but it also means that both men must be constantly in sync, a feat that is particularly impressive given that they are, in some sense, polar opposites. “Dave and Neil are left brain, right brain,” says Hunt, who is now a venture capitalist with Highland Capital Partners.

A Civilization Is at Stake Here

March 4th, 2015

We can’t defeat “global extremism” without discrediting the ideology behind it, T. Greer argues:

At the turn of the twentieth century, China, Japan, and Korea saw vast changes in the shape of their society because the old Neo-Confucian world view that had upheld the old order had been discredited. In Europe both communism and fascism rose to horrific heights because the old ideology of classical liberalism that had hitherto held sway was discredited. As a global revolutionary force communism itself withered away because the events that closed the 20th century left it discredited. If Americans do not worry about communist revolutionaries anymore it is because communism was so thoroughly discredited that there is no one left in the world who is willing to pick up arms in its name.

We cannot “win” this fight, in the long term, unless we can discredit the ideology that gives this fight teeth.

Luckily for us, this does not require discrediting a fourteen hundred year old religion held by one fifth of the world’s population. It is worth reminding ourselves that the ideology we seek to discredit is a comparatively new one. It was born in the sands of Najd shortly before Arabia became “Saudi,” crystallized in its present form only in the 1960s, and was not exported abroad until the late 1980s. The Israeli-Palestinian conflict excepted, almost all “Islamist” terrorist attacks can be linked directly to this new Salafi-Jihadist ideology and the madrassas and proselytizing media used to spread it. It is an ideology that directly threatens the sovereign rulers of every country in the Near East, and one whose interpretations are not only opposed by the majority of Islamic theologians, but have little relation to the way Islam was practiced in most places a mere 30 years ago.

That an ideology is new or rebels against established world views does not make it less dangerous. Novelty also says little about a movement’s future success–once upon a time Protestantism was a novel ideology. I encourage people to use this analogy. Think of these Salafi reformers as you do the first wave of Protestant reformers back in the 16th century. The comparison is apt not only because the goal of the Salafi-Jihadists is, like the original Protestants, to bring religious practice back to a pure and original form, or because the savagery displayed by many of the Protestant reformers was quite comparable to ISIS at its worst, but because this comparison gives you a sense of the stakes that are at play. This is a game where the shape of entire civilizations are on the table. The Salafi-Jihadists want to change the way billions of people worship, think, and live out their daily lives. ISIS’s success in the Near East gives us a clear picture of exactly what kind of society the Salafi-Jihadists envision for the Ummah.

I will not mince words:  humankind faces few catastrophes more terrible than allowing Salafi-Jihadist reformers to hijack Islamic civilization. Theirs is an ideology utterly hostile to human progress and prosperity, and their victory, if attained, will come at great human cost. The Protestants secured their Reformation with one of the most destructive wars of European history; there is little reason to think Salafi-Jihadist victories will be any less disastrous. Not every ‘great game’ of international power politics is played for civilization-level stakes. But that is exactly what is at stake here. We must plan accordingly.

Obstacles Increase Flow

March 4th, 2015

Placing an obstacle in front of a crowded door slightly increases the flow rate and, more importantly, reduces the duration of clogs:

The Most Insightful Management Training Film Ever Made

March 4th, 2015

Ben Horowitz was facing a particularly tricky management situation, where two excellent organizations within his company went to war with each other, when he happened to watch the most insightful management training film ever made:

The very next day I informed the head of Sales Engineering and the head of Customer Support that they would be switching jobs. I explained that, like Jodie Foster and Barbara Harris, they would keep their minds, but get new bodies.

However, after just one week walking in the other’s moccasins, both executives quickly diagnosed the core issues causing the conflict. They then swiftly acted to implement a simple set of processes that cleared up the combat and got the teams working harmoniously. From that day to the day we sold the company, the sales engineering and support organizations worked better together than any other major groups in the company.

Two Types of Machine Learning

March 3rd, 2015

Games are to AI researchers what fruit flies are to biology. A new AI has mastered many classic video games by combining two types of machine learning:

The first, called deep learning, uses a brain-inspired architecture in which connections between layers of simulated neurons are strengthened on the basis of experience. Deep-learning systems can then draw complex information from reams of unstructured data (see Nature 505, 146–148; 2014). Google, of Mountain View, California, uses such algorithms to automatically classify photographs and aims to use them for machine translation.

The second is reinforcement learning, a decision-making system inspired by the neuro­transmitter dopamine reward system in the animal brain. Using only the screen’s pixels and game score as input, the algorithm learnedby trial and error which actions — such as go left, go right or fire — to take at any given time to bring the greatest rewards. After spending several hours on each game, it mastered a range of arcade classics, including car racing, boxing and Space Invaders.

Only games with a simple and timely relationship between actions and score were amenable to reinforcement learning.

Thanks, Price Controls!

March 3rd, 2015

Alex Tabarrok shares his (and Tyler Cowen’s) latest video, on price ceilings:

When Smart People are Bad Employees

March 3rd, 2015

In tech, intelligence is an important quality, but it is not the only important quality, and this was a difficult lesson for Ben Horowitz to learn:

I felt that it was my job to create an environment where brilliant people of all backgrounds, personality types, and work styles would thrive. And I was right. That was my job. Companies where people with diverse backgrounds and work-styles can succeed have significant advantages in recruiting and retaining top talent over those that don’t. Still, you can take it too far. And I did.

For instance, you can’t allow the heretic to continue blaspheming:

Any sizable company produces some number of strategies, projects, processes, promotions, and other activities that don’t make sense. No large organization achieves perfection. As a result, a company needs lots of smart, super engaged employees who can identify its particular weaknesses and help it improve them.

However, sometimes really smart employees develop agendas other than improving the company. Rather than identifying weaknesses, so that he can fix them, he looks for faults to build his case. Specifically, he builds his case that the company is hopeless and run by a bunch of morons. The smarter the employee, the more destructive this type of behavior can be. Simply put, it takes a really smart person to be maximally destructive, because otherwise nobody else will listen to him.

Why would a smart person try to destroy the company that he works for?

  • He is disempowered.
  • He is fundamentally a rebel.
  • He is immature and naïve.

His example of the flake takes the archetype to another level:

Some brilliant people can be totally unreliable. At Opsware, we once hired an unequivocal genius—I’ll call him Roger (not his real name). Roger was an engineer in an area of the product where a typical new hire would take 3 months to become fully productive. Roger came fully up to speed in two days. On his third day, we gave him a project that was scheduled to take one month. Roger completed the project in 3 days with nearly flawless quality. More specifically, he completed the project in 72 hours. 72 non-stop hours: No stops, no sleep, no nothing but coding. In his first quarter on the job, he was the best employee that we had and we immediately promoted him.

Then Roger changed. He would miss days of work without calling in. Then he would miss weeks of work. When he finally showed up, he apologized profusely, but the behavior didn’t stop. His work product also degraded. He became sloppy and unfocused. I could not understand how such a stellar employee could go so haywire. His manager wanted to fire him, because the team could no longer count on Roger for anything. I resisted. I knew that the genius was still in him and I wanted us to find it. We never did. It turns out that Roger was bi-polar and had two significant drug problems: 1. He did not like taking his bi-polar medication and 2. He was addicted to cocaine. Ultimately, we had to fire Roger, but even now, it pains me to think about what might have been.

3D-Printed Replica Ring Sword

March 2nd, 2015

Norway’s National Museum of Art asked Nils Anderssen — a game developer and school teacher with a passion for re-creating historical artefacts in his spare time — to 3D-print a replica of its sixth-century sword:

The museum is in possession of a particularly fine sword — a golden-hilted ring-sword, probably used only by kings and nobles. The ring affixed to the hilt is believed to be the symbol of an oath.

Ring Sword Replica Hilt Front and Back

The instruction that the museum gave Anderssen was that the sword should look and feel exactly like the original would have done when it was new. This would allow museum visitors to have hands-on time with the sword, as a complement to admiring the relic safe in its glass case.

Anderssen has no experience in blacksmithing or goldsmithing, but he does know his way around 3D-modelling software — namely 3D Studio Max.

Ring Sword 3D Studio Max Rendering

Using photographs of the real sword to gauge the dimensions of the hilt, Anderssen modelled the shape into basic polygons before working on carving out the fine details of the intricate design. Then he sent the finished model to i.materialise to be printed in bronze. When the finished print arrived, he cleaned up the details and had the pieces gilded and fitted with wooden inserts for stability before being attached to the blade.

Ring Sword Original and Replicas

 

10% Less Democracy

March 2nd, 2015

Garett Jones suggests we try 10% less democracy and see how that works out.

Politicians behave differently near the end of their term, when they play more to voters’ irrational biases, including their anti-market bias, make-work bias, anti-foreign bias, and pessimistic bias.

Jones cites an unusual source — Jennifer Hochschild, Professor of Government and of African and African-American Studies at Harvard — on epistocracy:

Three uncontroversial points sum to a paradox:

  1. Almost every democratic theorist or democratic political actor sees an informed electorate as essential to good democratic practice….
  2. In most if not all democratic polities, the proportion of the population granted the suffrage has consistently expanded, and seldom contracted, over the past two centuries….
  3. Most expansions of the suffrage bring in, on average, people who are less politically informed or less broadly educated than those already eligible to vote….

Putting these three uncontroversial points together leads to the conclusion that as democracies become more democratic, their decision-making processes become of lower quality in terms of cognitive processing of issues and candidate choice.

Jones recommends six-year terms for the House and more autonomous agencies like the Fed.

Management Debt

March 2nd, 2015

When you borrow time by writing quick and dirty code, you incur technical debt. When you borrow time by making easy management decisions — or none at all — you incur management debt. Ben Horowitz shares an example he calls putting two in the box:

What do you do when you have two outstanding employees who logically both fit in the exact same place on the organizational chart? Perhaps you have a world-class architect who is running engineering, but she does not have the experience to scale the organization to the next level. You also have an outstanding operational person who is not great technically. You want to keep both in the company, but you only have one position. So, you get the bright idea to put “two in the box” and take on a little management debt. The short-term benefits are clear: a) you keep both employees, b) you don’t have to develop either because they will theoretically help each other develop, c) you instantly close the skill set gap. Unfortunately, you will pay for those benefits with interest and at a very high interest rate.

For starters, by doing this you will make every engineer’s job more difficult. If an engineer needs a decision made, which boss should she go to? If that boss decides, will the other boss be able to override it? If it’s a complex decision that requires a meeting, does she have to schedule both heads of engineering for the meeting? Who sets the direction for the organization? Will the direction actually get set if doing so requires a series of meetings?

In addition, you have removed all accountability. If schedules slip, who is accountable? If engineering throughput becomes uncompetitive, who is responsible? If the operational head is responsible for the schedule slip and the technical head is responsible for throughput, what happens if the operational head thrashes the engineers to make the schedule and kills throughput? How would you know that she did that? The really expensive part about both of these things is that they tend to get worse over time. In the very short-term you might mitigate these effects with extra meetings or by attempting to carve up the job in a clear way. However, as things get busy the mitigation will fade and the organization will degenerate. Eventually, you’ll either make a lump sum payment by making the hard decision and putting one in the box or your engineering organization will suck forever.

His other examples are overcompensating a key employee, because she gets another job offer and having no performance-management or employee-feedback process.

Mr. Money Mustache

March 1st, 2015

I happened to revisit Mr. Money Mustache‘s site last night and then woke this morning to see Tyler Cowen apparently missing the point about MMM’s philosophy. The Vox interview he cites lays it out pretty well:

DK: What’s the most common mistake you see people making with their money?

MMM: You could probably sum it up as taking a very short-term view on money and life: “I have $5 in my wallet right now, so I can afford this coffee,” or “I make more than $399 per month, so I can afford to borrow money for this car.”

Instead, I try to get people to think of things in 10-year chunks at a minimum and then move on to a lifetime perspective. For example, spending $100 per week on restaurants equates to a $75,000 hit to your wealth every ten years, compared to keeping that money and just investing it in a conservative way.

Instead of thinking of income as a temporary stream of cash that keeps you afloat, think of every dollar as a potential permanent lifetime employee that will work for you as long as you keep and invest it. But once you spend it, that particular dollar is gone.

DK: I really appreciate that you phrase your philosophy on money in terms of happiness. What’s a good way to put that into practice, though — if I’m standing at the store and thinking, “That dress would make me happy,” what can I ask myself to figure out if I really should buy it?

MMM: The first trick is to remind yourself that buying something — pretty much anything — is very unlikely to improve your long-term happiness. Science figured this out for us long ago, but not many people got the memo. Go to your junk electronics drawer and look at your old flip phones or your dusty iPad 1. Look at the clothes you’ve recently pruned from your closet that are now headed to the Goodwill. You traded a lot of good dollars for those, not very long ago at all. Are they still making you happy today?

Then think about what would really make you happy. For me, it was the freedom to choose how I spent my days, with no worries about money for the rest of my life. Again, every dollar that you keep for yourself will immediately start paying dividends towards this freedom. Your stress about money drops away, and you can walk away from a job or a boss you’re not fond of — the options start to open up with breathtaking speed as you step away from the financial cliff.

DK: What do you and your family splurge on?

MMM: I feel that we splurge on everything. For example, we live in a house that looks like it came from the pages of a modern architecture magazine, overlooking a park and within walking distance of downtown. I have not just one car, but two of them, which we never even use because we also have six bicycles between the three of us. We also eat ridiculously fancy food at home and take some pretty exotic vacations. Everything seems really over-the-top, considering the fact that we could be just as happy with much less.

But for other people, my life might seem like the opposite of a splurge: “What? Three people live in only 1,500 square feet? Their cars are from 2005 and 1999? That sounds like a really extreme life of frugality!”

The key to all of this is to zoom out a bit and put things in perspective. Both my life and your life are ridiculously abundant and safe compared to almost every human who has ever lived before you in the history of this planet. If we can’t be happy in this incredible place of privilege, we need to punch ourselves in the face and try again.

DK: How did you get started in the area of personal finance? And what informs your views here — did your parents talk money much with you growing up?

MMM: I was born as the stereotypical engineer kid, which means I was always interested in optimizing everything. Money was just one of those things.

It was only after I turned 30 and had enough money to retire from real work that I started getting these incredulous comments from friends and coworkers, like “What do you mean you are retiring? How will you get the money to pay your car loan and your mortgage? I’d be sunk within a month if I lost my job.”

To me, their stories were much more amazing than my own story of early retirement. They were the same age as me or older, and had equal or higher salaries. I couldn’t imagine having a shortage of money in such amazing conditions. Then I looked even higher up the income scale and found the same phenomenon. It turns out that humans are capable of blowing almost any amount of money, without realizing they are doing it.

I do agree with Cowen on one point though:

I’ll note in passing that my “dusty iPad 1″ gave me an enormous amount of pleasure, as does my later iPad.