Author Archives: kevin

About kevin

I write the posts

links for 2010-09-26

  • how to hold 1 on 1 meetings as a manager
  • On September 26th, 1983, Lieutenant Colonel Stanislav Yevgrafovich Petrov was the officer on duty when the warning system reported a US missile launch.  Petrov kept calm, suspecting a computer error. Then the system reported another US missile launch. And another, and another, and another. What had actually happened, investigators later determined, was sunlight on high-altitude clouds aligning with the satellite view on a US missile base. The Soviet Union's land radar could not detect missiles over the horizon, and waiting for positive identification would limit the response time to minutes.  Petrov's report would be relayed to his military superiors, who would decide whether to start a nuclear war. Petrov decided that, all else being equal, he would prefer not to destroy the world.  He sent messages declaring the launch detection a false alarm, based solely on his personal belief that the US did not seem likely to start an attack using only five missiles.
  • The lemmings that plunge to their deaths in the 1958 Disney documentary "White Wilderness" were hurled ingloriously to their doom by members of the crew, as a Canadian documentary revealed. Palmer writes that Marlin Perkins, host of television's "Wild Kingdom," was known to bait animals into combat and to film captive beasts deposited into the wild, and that the avian stars of the 2001 film "Winged Migration" were trained to fly around cameras. Palmer asserts that manipulation pervades his field. Game farms, he writes, have built a cottage industry around supplying nature programs with exotic animals. Much of the sound in wildlife films is manufactured in the studio. Interactions between predator and prey are routinely staged. "And if you see a bear feeding on a deer carcass in a film," Palmer writes, "it is almost certainly a tame bear searching for hidden jellybeans in the entrails of the deer's stomach."
  • A liberal arts education helps us think with greater subtlety, even if it does not improve our performance on subsequent standardized tests.  I see an impact here even on the lesser students in state universities.  It also helps explain how the U.S. so suddenly leaps from having so-so high schools to outstanding graduate schools; how many other countries emphasize liberal arts education in between? Liberal arts education forces us to decode systems of symbols.  We learn how complex systems of symbols can be and what is required to decode them and why that can be a pleasurable process.  That skill will come in handy for a large number of future career paths.  It will even help you enjoy TV shows more. For related reasons, I believe that people who learn a second language as adults are especially good at understanding how other people might see things differently.
  • Ferriss says don't eat anything with gluten in it. I should try this for a week or so

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links for 2010-09-25

  • guy's feelings on being a father don't match up with what society expects. photo essay, good
  • I can't help smiling at this because it illustrates the great difficulty persons of great computational ability (which I shall refer to as nerds) have in overlooking small matters of inaccuracy. It's not uncommon to see computer folk arguing over fine points of semantics or mathematics, or deliberately playing with words and puns, or laughing about the minutiae of some program, machine or situation. This comes about because nerds spend all their time worrying about details. Computers are exceedingly finnicky things. They do precisely what they are told (with heavy emphasis on precisely). Thus anyone who works with them (and by that I mean anyone who actually deals with computers rather than mere users) ends up training themselves to spot minute details that are incorrect or out of place.

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How do you respond to failure?

NB: The target audience was high school basketball players, but the content is relevant for anyone.

How do you respond when you fail? You might be pretty good at your job, but you will eventually reach some point where you are working with people who are better than you.

You will experience this in high school and college as well. You might see grades on your exams and papers that are much, much lower than you’re used to. You all are away from your parents and the friends of your neighborhood for the first time, in a culture that’s wildly different, and more dangerous, than the one you grew up in. You’ll have to deal with uncertainty and rejection in your relationships with your peers.

As a group, your interpretations of these events will differ dramatically. If your coach doesn’t play you, some of you will say, “The coach hates me, what’s the point of trying” or “I’ll never be good enough,” and some of you will say, “I need to work harder.” After getting a D on your first midterm, some of you will say “I didn’t work hard enough” or “The teacher was in a grumpy mood,” and some of you will say “I’ll never be a good student,” or “I’m not as smart as everyone else.” If you ask a cute girl out and she says no, some of you will say “I got tongue tied,” and some of you will say, “She said no because I’m an unlikeable person.” If you get elected for a leadership position, some of you will say, “I was elected because I’m a good leader,” and some of you will say, “I got lucky all of the other candidates were awful.”

The way you respond to events is called your explanatory style. We call the first group of people optimists – people who believe they are responsible for positive events, and that others are responsible for negative events, and the second group – who blame themselves for negative events and don’t take credit for positive events – pessimists (to figure out your own style, you can try this online quiz – if the bottom score is above 6, you’re optimistic, 1 or below is pessimistic, and in between is average). Here’s the surprising part: Relative to high school GPA and SAT scores, optimists outperform the average student, and pessimists underperform1. A pessimistic explanatory style can hurt even more, however. Pessimists are at a much greater risk of sinking into depression. They’re more likely to become sick, and have a lower life expectancy than optimists.

The good news is that you can change your explanatory style. The technique involves noticing your automatic negative thoughts – “I can never think of anything to say” or “I’m not as smart as everyone else,” disputing those thoughts by remembering contrary evidence, providing a different, less permanent, explanation for the event, and finally distracting yourself from the pessimistic thoughts in the first place, giving yourself more control over what you think. This technique has the power to permanently change your explanatory style, and help you realize your full potential. Mastering this skill is more important than learning how to score with your weak hand or learning how to rebound. If you can master optimism, you won’t be vulnerable to a run by the opposing team. You’ll respond to getting beaten by working harder, not complaining. You’ll give yourself full credit when you win and learn to work harder when you lose.

While we all plan for the best, and expect to have fun on the court, it’s not going to be rosy all the time. When things hit the fan, it will be helpful to remember the words of Gabriel Garcia Marquez: “What matters in life is not what happens to you, but what you remember, and how you remember it.”

1. Martin Seligman, Learned Optimism, page 151-152.

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links for 2010-09-24

  • the best for me for both programming and essay writing was colemak. must I switch keyboard layouts again?
  • Here's my advice to people who make these queries: Stop and think about all of your personal interests and solve a simple problem related to one of them. For example, I practice guitar by playing along to a drum machine, but I wish I could have human elements added to drum loops, like auto-fills and occasional variations and so on. What would it take to do that? I could start by writing a simple drum sequencing program--one without a GUI--and see how it went. I also take a lot of photographs, and I could use a tagging scheme that isn't tied to a do-everything program like Adobe Lightroom. That's simple enough that I could create a minimal solution in an afternoon. The two keys: (1) keep it simple, (2) make it something you'd actually use.
  • make users ask for invites publicly, turn on invites for only a few hours at a time
  • "Then [Somerset] moved on to Charles Dickens. His identification with the works of these long-dead British writers was total. “All of those characters are me,” Somerset explained. “Neither a British nor American young man living in the twenty-first century can understand a Dickens as well as I can. I am living in a Dickens atmosphere. Our country is at least one or two centuries behind the Western world. My neighborhood—bleak, poor, with small domestic industries, children playing on the street, the parents are fighting with each other, some are with great debt, everyone is dirty. That is Dickens. In that Dickens atmosphere I grew up."
  • hilarious. During the past few decades, early-development “experts” have stressed the importance of so-called “enrichment activities”: reading to babies, singing to them, even talking to them. We are now finding that these activities, in addition to being excruciating for the parent, may actually be harmful to the baby, lengthening her attention span to the point where she will be unable to enjoy most popular entertainment. Fortunately, there’s a simple way to reverse this damage, using a system I call FIT (Facebook, iPhone, TV). By exposing your baby to these three things for as many hours as possible, you’ll insure that she’ll be well equipped for a lifetime of pointless multitasking. Quick test: Put your hands in front of your eyes and play peekaboo with your baby. If she ignores you and picks up your phone, reward her with her favorite app.

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links for 2010-09-23

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Senior thesis thoughts

  • Most students' initial thoughts for a topic are almost laughably broad. One girl in my research methods class announced with a straight face that she wanted to measure the impact of foreign aid on country GDP. I asked whether she'd want to consider evaluating the effects of one project in one location. That said, I guess it's an easy mistake to make if you're not used to reading economic papers, or familiar with how this kind of academic bread gets buttered.
  • The other disturbing trend is that students generally have an opinion or conclusion in mind and then want to find evidence to support it. For example, aforementioned girl wanted to show that foreign aid doesn't have much effect on GDP. This is evidence for the theory that reasoning isn't about logic, it's about arguing. Plus I guess if you're only going to produce one thesis in your life, you might as well try to have it say something about you or your worldview.
  • About half of the senior theses last year were sports-related.
  • I lucked into a topic that's ostensibly about economics, but will let me do more web development and user experience testing. I'd been gathering ideas for about a year though; here they are. Most of them are no good because it would be really hard to collect data to test the hypothesis.
********** One sentence summary: Do students at schools with higher alcohol consumption rates enjoy outsize success later on? Examining the effects of drinking in higher education: drinkers generally earn higher incomes than non-drinkers, but do higher-drinking schools enjoy more business success? Drinking may be a way to signal to others that you're trustworthy; do higher-drinking schools enjoy closer alumni networks, more donations back to the school, etc? Do high drinkers have higher status jobs? ************ Libertarians value personal liberty above all else. Among other things, Haidt et al (2010) have found that libertarians have weaker social ties, lower interdependence, etc. However, these qualities are also associated with higher levels of unhappiness and depression. For instance, Buck Schieffelin has tried to find a depression equivalent among members of a New Guinean tribe, with no success. Group ties there are very strong; a member who experiences loss is taken care of by the tribe. Other evidence includes the fact that American women have become unhappier as they’ve become wealthier and more independent. I investigate whether a more libertarian, economically efficient society would be more unhappy, at the same level of income, or whether a more libertarian minded population would be more unhappy, or both. ************* Various ideas related to depression: The amount of Americans indicating they've had a depressive episode has steadily increased over time, and the age of first depression has steadily decreased. Why has this happened? Depression is a reaction to low social status. I want to examine the possibility of treating depression through raising the patient's status - through an MMORPG, hired actors, confederates, a new social group, or some other means. Massively multiplayer online role-playing games are a place where status is entirely earned through hard work - how many points accumulated, kills, etc. They're also engaging, somewhat addictive and tend to distract people from real life. I'm wondering if we could treat depression by having patients slowly accumulate status and recognition in an MMORPG. Would people accept whole-world simulations, e.g. life in a Matrix-like world, instead of suicide, if the option existed? ************* The placebo effect works because we believe that the pill or therapy we are taking will have an effect, so our brains adjust in response even though there is no healing power in the medicine or therapy itself. What if we believed really strongly (eg had a wise person, a religion, or society, tell us) that our brain could produce various chemicals to increase concentration, reduce pain, increase pleasure, etc? It could become a self-fulfilling prophecy, maybe, if people started to expect that their brains would produce more of the chemical in reaction to believing it. Idea from Iain Banks, Player of Games. *********** One sentence summary: Can we convince irrational high discounters to save more money? Testable Question: Develop a model of saving and evaluate legality of offering. Dataset: Purchasing data on lotteries and their odds - do lottery consumers buy based on the odds. Most people should save more, but current forms of saving (CDs, stocks, bank accounts) are either inaccessible to the poor or don’t provide any short term reward. Furthermore behavior such as gambling doesn’t fit into most academic models of saving. What if we encouraged people to save by saving some of the money they use to gamble with? How it works: You purchase a lottery ticket. X per cent of the money goes into the prize pool with everyone else who bought a ticket and is available for immediate distribution. (100-X) per cent is collected and invested on behalf of the ticket purchaser, say by purchasing a 1-year CD. The (100-X) portion can be collected by the purchaser after one year or two years. The effect is to turn lotteries, a negative-NPV investment, into a savings product. *********** One sentence summary: If prediction markets provided accurate estimates of budgets and time to completion for government projects, would contract bidding and completion estimates become more honest? Testable question: What drives decision making and approval of government projects? How accountable are the officials involved to public scrutiny? Dataset: Series of past government projects, a model predicting how government officials will act in each situation I investigate the possibility of introducing a corruption market - each government official is tradeable and the closer his/her price is to 1, the more likely the official is engaging in corrupt behavior. You can buy and sell corruption tickets - perhaps if the price is above 0.9 for a week the official gets investigated by a board, or some other mechanism. Similarly, investigate creating prediction markets designed to make government more accountable: prediction markets for the final cost of government outlays (transportation projects with ballooning budgets, prediction markets for GDP/employment data revisions, etc.) ******** One sentence summary: Can we take advantage of investors fear of underperforming relative to other investors? Testable Question: Can an investor worried about overall return improve upon current market performance? Does the theory suggest arbitrage opportunities? Dataset: CRSP As Eric Falkenstein points out in his paper "Risk and Return in General: Theory and Evidence," there is virtually zero demonstratable premium for taking on excess risk. Falkenstein's theory is that investors are more concerned for their status vs. other investors than they are concerned about overall return. Thus there should be a difference in people's expectations for the return on various risky assets even though there is little difference in the real return. Could an investor unworried by social status, or the yearly returns of his fund, exploit this expectation gap via arbitrage, by setting up a prediction market for returns, or shorting options on "risky" assets while buying options on "safe" ones. ************ One sentence summary: Test the theory that weak employees stay with firms for the longest because their outside prospects are slim, and the resulting implications for companies that offer pensions, healthcare, etc. Testable Question: How does employee turnover affect a firm's profitability? Dataset: List of employees by time with company, and their productivity. Employees who are with a firm for a long time might be the firm's weakest employees. Weak employees have little motivation to seek other jobs, and no one is trying to hire them. There are a number of interesting hypotheses here - Investigate whether this is harming the long-term stay with one company model, or whether high performers feel compelled to signal strength by switching jobs often. ********** One sentence summary: Improve traffic, pollution, quality of life, potentially wages, by placing a tax on commute time. Testable Question: Can we place a tax on commute time? What would be the effects? Dataset: A model that predicts how people choose their homes (price, location, crime, etc) that will be able to estimate the change in total miles driven from an increase in the price of a longer commute. Also a model of how much a shorter commute is worth to employees. Long commutes are correlated with lower levels of happiness among employees. People seek longer commutes because home prices near the place of employment are generally higher and they can purchase more home for the same price by living further away, even though this has deleterious effects on welfare. I investigate the effects of a tax on high commute time and whether such a policy would be welfare-improving. I predict the following effects: workers will move closer to the workplace, workers will be more satisfied with their lives, workplaces will spread out further, municipalities will face more demand to invest in transportation/reducing the cost of traffic jams, wages could rise, for instance, to adequately compensate someone with a longer commute time. *************************************************************** throwaways *************************************************************** Is there a correlation between gross Internet use and student grades? Are students who are on the Internet too much getting worse grades? We could track students using SurplusMeter, an unobtrusive Internet-tracking data application for the Mac. Do the dreams of high and low status people differ in significant ways? How important are people's sources of information to their idea generation and ultimate success? Examine very successful, average success and low success people to see how they collect information, whether their sources are significantly different from their peer groups. Do we pick colleges to impress our high school friends and jobs to impress our college friends? Persistence is a useful tool but in the short term persistence is low status, because sometimes you might try really hard and still fail, an outcome clearly worse than not trying at all. Measure persistence, suggest ways to raise the status of persistent people, etc, try to find a correlation between avg persistence and success.

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links for 2010-09-22

  • When Steadman encountered HotWired’s infamous “Login or Join” home page, he wondered how someone like Rossetto could so misunderstand one of the fundamental aspects of the web. “Because it was necessary to register to read anything on the site, it was impossible to link from anywhere else on the web to HotWired. It was my great concern that, as a leader in the space, HotWired could precipitate many more ‘premium’ content sites that prevented linking content.” He was enough of a pragmatist to know that the only way to affect change at HotWired, to make sure that linking on the web worked, was from within HotWired. He sent a resume by email.
  • good summary of the problems that european teams are in. the essential problem is that winning is linked with spending money, as long as it's zero sum they'll always spend into bankruptcy "UEFA, European soccer's governing body, will implement its Financial Fair Play scheme by the 2012-13 season. It will ban teams that spend more than they earn from continental competitions. Clubs like Chelsea and Manchester City would be in danger of missing out on the tournament, the Champions League, that they spend so heavily to gain access to."
  • for when i get tired of helvetica everything
  • "Taking time to go fuck around abroad has become essential to a well-rounded education," said New York University dean of student affairs Christina White. "We urge all our students to pick a program that's right for them, whether it's six weeks dicking around in the Spanish countryside, or six months sticking your thumb as far up your ass as you possibly can in Japan or South Korea."

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links for 2010-09-21

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links for 2010-09-20

  • So, people are black boxes. You can ask them a question, and they’ll tell you whatever they think you want to hear. So, you’ve got to throw an impulse function at them. I try to keep them off balance. I try to give them a question that feels like a two-by-four between the eyes. Q. Like? A. I’ll start off with, “How smart are you?” People get really uncomfortable. They don’t know what to do, and they don’t know how to answer it. They know it’s kind of a trick, and it flusters them. Or I’ll take a look at something that they did, and I’ll tell them it’s a big mistake and then just see how they react. Do they start crying? Do they get in a terrible rage and argue with you, or do they come back and systematically tell you why you’re wrong, or perhaps agree with you on certain areas? So, I’m looking for that.
  • A progress-centric person who has an interesting idea for a book jumps right into writing it, while an idea-centric person runs the idea through a wringer — talking to agents and writers, looking for similar works that have sold recently, etc. — before deciding to invest the years required to write and market it. A progress-centric person quits his job to start his on blog-based online business, assuming he’ll figure out the details as he goes along, while an idea-centric person invests the months — maybe years — of hard work necessary to find a business idea with a real chance of supporting him, understanding that the right answer might be for him to build a valuable skill before going freelance.
  • The Data Liberation Front is an engineering team at Google whose singular goal is to make it easier for users to move their data in and out of Google products.  We do this because we believe that you should be able to export any data that you create in (or import into) a product.  We help and consult other engineering teams within Google on how to "liberate" their products.  This is our mission statement: Users should be able to control the data they store in any of Google's products.  Our team's goal is to make it easier to move data in and out.
  • The researchers ran a simulation of their approach in the city center of Dresden. The area has 13 traffic light–controlled intersections, 68 pedestrian crossings, a train station that serves more than 13,000 passengers on an average day and seven bus and tram lines that cross the network every 10 minutes in opposite directions. The flexible self-control approach reduced time stuck waiting in traffic by 56 percent for trams and buses, 9 percent for cars and trucks, and 36 percent for pedestrians crossing intersections. Dresden is now close to implementing the new system, says Helbing, and Zurich is also considering the approach.
  • Whoops!
  • Others have been less enthusiastic. Several of the college's computer geeks have rerouted internet access through Canada or Norway or used proxy websites to break through the firewall. Some students have nipped to the nearby Hilton hotel to use its wireless access. Giovanni Acosta, 21, knows how to overcome the blackout but decided against it, as he wanted to see the outcome of the experiment. At first he said he was twitchy. "I had to log on to Facebook even though I knew it was blocked, and I did that every 10 minutes or so, again and again," he said. "But now the itch has gone. I've learnt how much I was being distracted."

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