Oct 7, 2018 in Model
Or: the simplest ways of killing people tend to be the most effective.
A raft of articles came out during Defcon showing that security vulnerabilities exist in some pacemakers, vulnerabilities which could allow attackers to load a pacemaker with arbitrary code. This is obviously worrying if you have a pacemaker implanted. It is equally self-evident that it is better to live in a world where pacemakers cannot be hacked. But how much worse is it to live in this unfortunately hackable world? Are pacemaker hackings likely to become the latest crime spree?
Electrical grid hackings provide a sobering example. Despite years of warning that the American electrical grid is vulnerable to cyber-attacks, the greatest threat to America’s electricity infrastructure remains… squirrels.
Hacking, whether it’s of the electricity grid or of pacemakers gets all the headlines. Meanwhile fatty foods and squirrels do all the real damage.
One of the best things about taking physics classes is that the equations you learn are directly applicable to the real world. Every so often, while reading a book or watching a movie, I’m seized by the sudden urge to check it for plausibility. A few scratches on a piece of paper later and I will generally know one way or the other.
One of the most amusing things I’ve found doing this is that the people who come up with the statistics for Pokémon definitely don’t have any sort of education in physics.
Takes Onix. Onix is a rock/ground Pokémon renowned for its large size and sturdiness. Its physical statistics reflect this. It’s 8.8 metres (28’) long and 210kg (463lbs).
Surely such a large and tough Pokémon should be very, very dense, right? Density is such an important tactile cue for us. Don’t believe me? Pick up a large piece of solid medal. Its surprising weight will make you take it seriously.
Economists normally splits goods into four categories:
Club goods are perhaps the most interesting class...
For the uninitiated, Sanderson’s Law (technically, Sanderson’s First Law of Magic) is:
An author's ability to solve conflict with magic is DIRECTLY PROPORTIONAL to how well the reader understands said magic.
Brandon Sanderson wrote this law to help new writers come up with satisfying magical systems. But I think it’s applicable beyond magic. A recent experience has taught me that it’s especially applicable to fantasy cultures.
I recently read Sunset Mantle by Alter S. Reiss, a book that falls into one of my favourite fantasy sub-genres: hopeless siege tales.
Sunset Mantle is what’s called secondary world fantasy; it takes place in a world that doesn’t share a common history or culture (or even necessarily biosphere) with our own. Game of Thrones is secondary world fantasy, while Harry Potter is...
[Warning: Spoilers for Too Like the Lightning]
What marks writing as amateurish (and whether “amateurish” or “low-brow” works are worthy of awards) has been a topic of contention in the science fiction and fantasy community for the past few years, with the rise of Hugo slates and the various forms of “puppies”.
I’m not talking about the learning works of genuine amateurs. These aren’t stories that use big words for the sake of sounding smart (and at the cost of slowing down the stories), or over the top fanfiction-esque rip-offs of more established works (well, at least not since the Wheel of Time nomination in 2014). I’m talking about that subtler thing, the feeling that bubbles up from the deepest recesses of your brain and says “this story wasn’t written as well as it could be”.
I’ve been thinking about this a lot recently because about ¾ of...
There is perhaps no temptation greater to the amateur (or professional) historian than to take a set of historical facts and draw from them a grand narrative. This tradition has existed at least since Gibbon wrote The History of the Decline and Fall of the Roman Empire, with its focus on declining civic virtue and the rise of Christianity.
Obviously, it is true that things in history happen for a reason. But I think the case is much less clear that these reasons can be marshalled like soldiers and made to march in neat lines across the centuries. What is true in one time and place may not necessarily be true in another. When you fall under the sway of a grand narrative, when you believe that everything happens for a reason, you may become tempted to ignore all of the evidence to the contrary.
Instead praying at the altar...
I watch a lot of political debates with my friends. A couple of them have turned to me after watching heated arguments about public debt and (because I have a well-known habit of reading monetary policy blogs) asked me who is right. I hear questions like:
Is it true that public debt represents an unfair burden on our hypothetical grandchildren? Is all this talk about fiscal discipline and balanced budgets pointless? Is it really bad when public debt gets over 100% of a country’s GDP? How can the threat of defaulting on loans lead to inflation and ruin?
And what does all this mean for Ontario? Is Doug Ford right about the deficit?
This is my attempt to sort this all out in a public and durable form. Now when I’ve taken a political debate drinking game too far, I’ll still be able to point people towards the answers to...
I don’t understand why people choose to go bankrupt living the most expensive cities, but I’m increasingly viewing this as a market failure and collective action problem to be fixed with intervention, not a failure of individual judgement.
There are many cities, like Brantford, Waterloo, or even Ottawa, where everything works properly. Rent isn’t really more expensive than suburban or rural areas. There’s public transit, which means you don’t necessarily need a car, if you choose where you live with enough care. There are plenty of jobs. Stuff happens.
But cities like Toronto, Vancouver, and San Francisco confuse the hell out of me. The cost of living is through the roof, but wages don’t even come close to following (the difference in salary between Toronto and Waterloo for someone with my qualifications is $5,000, which in no way would cover the...
In simple economic theory, wages are supposed to act as signals. When wages increase in a sector, it should signal people that there’s lots of work to do there, incentivizing training that will be useful for that field, or causing people to change careers. On the flip side, when wages decrease, we should see a movement out of that sector.
This is all well and good. It explains why the United States has seen (over the past 45 years) little movement in the number of linguistics degrees, a precipitous falloff in library sciences degrees, some decrease in English degrees, and a large increase in engineering and business degrees1.
This might be the engineer in me, but I find things that are working properly boring. What I’m really interested in is when wage signals break down and are replaced by a job lottery.
The first time I tried vegetarianism, I ended up deficient in B12. Since then, I’ve realized just how bad vitamin B12 deficiency is (hint: it can cause irreversible neural damage) and resolved to get it right this time.
I’m currently eating no meat, very little milk, almost no eggs, and a fair amount of cheese. I consider clams, oysters, and mussels to be morally (if not taxonomically) vegetables, but am too lazy to eat them regularly. To figure out what this diet put me at risk for, I trolled PubMed1 until I found a recent article arguing for a vegan diet, then independently checked their nutritional recommendations.
Based on this, I’ve made a number of changes to my diet. I now take two vitamins in the morning and a slew of supplements in sugar-free...
Jan 7, 2018 in Advice
Why do so many people undermine their apologies with defensiveness?
When celebrity chef Mario Batali apologized for sexually harassing his employees, he included a link to a recipe at the end of the email.
This fits into the pattern we’ve seen in many of the recently named abusers. When (if) they apologize, they’re sure to lace it with a few face saving measures:
Amazingly, and for the first time I can remember, (most) people aren’t buying it.
When you make continuous, incremental improvements to something, one of two things can happen. You can improve it a lot, or you can fall into superstition. I’m not talking about black cats or broken mirrors, but rather humans becoming addicted to whichever steps were last seen to work, instead of whichever steps produce their goal.
I’ve seen superstition develop first hand. It happened in one of the places you might least expect it – in a biochemistry lab. In the summer of 2015, I found myself trying to understand which mutants of a certain protein were more stable than the wildtype. Because science is perpetually underfunded, the computer that drove the equipment we were using was ancient and frequently crashed. Each crash wiped out an hour or two of painstaking, hurried labour and meant we had less time to use the instrument...
In 2006, Dr. Atul Gawande wrote an article in The New Yorker about maternal care entitled “How Childbirth Went Industrial”. It’s an excellent piece from an author who consistently produces excellent pieces. In it, Gawande charts the rise of the C-section, from its origin as technique so dangerous it was considered tantamount to murder (and consequently banned on living mothers), to its current place as one of the most common surgical procedures carried out in North American hospitals.
The C-section – and epidurals and induced labour – have become so common because obstetrics has become ruthlessly focused on maximizing the Apgar score of newborns. Along the way, the field ditched forceps (possibly better for the mother yet tricky to use...
Previously I described regulation as a regressive tax. It may not kill jobs per se, but it certainly shifts them towards people with university degrees, largely at the expense of those without. I’m beginning to rethink that position; I’m increasingly worried that many types of regulation are actually leading to a net loss of jobs. There remains a paucity of empirical evidence on this subject. Today I’m going to present a (I believe convincing) model of how regulations could kill jobs, but I’d like to remind everyone that models are less important than evidence and should only be the focus of discussion in situations like this, where the evidence is genuinely sparse.
Let’s assume that regulation has no first order effect on jobs. All jobs lost through regulation (and make no mistake, there will be lost jobs) are offset by different jobs in regulatory compliance or the jobs...
[3 minute read]
Most of us are familiar with what it looks like when someone we know is living beyond their means. Expensive vacations, meals, or possessions pile up, accompanied by a veritable mountain of credit card debt. People fall into the horrible habit of paying one credit card off with another and get punished by punitive credit card interest rates.
If someone lives beyond their means for years, they may never be able to retire. Only frantic work keeps them just ahead of the tsunami of debt.
People living beyond their means often have a higher material standard of living then their friends. They have a nicer house, nicer cars, take nicer vacations and eat out more. But they tend to be more stressed out. Every month they have to figure out how to make ends meet.
For people who like possessions and don’t mind stress, it can be...
I’m a person who sometimes reads about ethics. I blame Catholicism. In Catholic school, you have to take a series of religion courses. The first two are boring. Jesus loves you, is your friend, etc. Thanks school. I got that from going to church all my life. But the later religion classes were some of the most useful courses I’ve taken. Ever. The first was world religions. Thanks to that course, “how do you know that about [my religion]?” is a thing I’ve heard many times.
The second course was about ethics, biblical analysis, and apologetics. The ethics part hit me the hardest. I’d always loved systematizing and here I was exposed to Very Important Philosophy People engaged in the millennia long project of systematizing fundamental questions of right and wrong under awesome sounding names, like “utilitarianism” and...
It can be hard to grasp that radio waves, deadly radiation, and the light we can see are all the same thing. How can electromagnetic (EM) radiation – photons – sometimes penetrate walls and sometimes not? How can some forms of EM radiation be perfectly safe and others damage our DNA? How can radio waves travel so much further than gamma rays in air, but no further through concrete?
It all comes down to wavelength. But before we get into that, we should at least take a glance at what EM radiation really is.
Electromagnetic radiation takes the form of two orthogonal waves. In one direction, you have an oscillating magnetic field. In the other, an oscillating electric field. Both of these fields are orthogonal to the direction of travel.
These oscillations take a certain amount of time to complete, a time which is calculated by observing the peak value...
Neil McDonald’s new column points out that Trump’s low-income supporters voted against their own economic self-interest. This presents a fine opportunity for Mr. McDonald to lecture those voters about how bad Trump’s policies will be for them, as if they couldn’t have figured it out themselves.
I say: some of Trump’s supporters voted against their own self-interest? So what? Hillary Clinton’s well-off supporters, from Sam Altman, to many of my friends in the Bay Area did as well.
Back in Canada, I have even more examples of people who voted against their self-interest. They include myself, Mr. McDonald (in all likelihood), a bevy of well off technologists and programmers, and a bunch of highly educated students who expect to start high-paying jobs before the next election.
Just like Trump’s lower-income voters, we knew what we were getting into. We understood that we were voting for higher taxes for people...
Imagine that you’re a young teenager who really loves red jellybeans. You love them so much that you unabashedly call them your favourite food. It’s only the red ones though – you find all other jellybeans disgusting. For the purposes of this extended metaphor, you will have a sister. Like you, she loves one colour of jellybeans, but unlike you she only loves the green ones.
Your parents are stingy. They long ago realized that they could save a lot of money by paying you for your chores in jellybeans, instead of with an allowance. To prop up this system, they’ve forbidden both you and your sister from buying jellybeans in any store. Both of you can only get jellybeans from your parents. You each get a few jellybeans of your preferred colour each time you...
Mar 16, 2017 in Philosophy
In a village, the barber shaves everyone who does not shave himself, but no one else. Who shaves the barber.
Imagine The Barber as similar to The Pope. When he is in his shop, cutting hair, he is The Barber and has all of the powers that entails, just as The Pope only possesses the full power of papacy when speaking “from the chair”. When The Barber isn’t manifesting this mantle, he’s just Glen, the nice fellow down the lane. Glen shaves his own beard. The Barber therefore doesn’t have to.
Alternatively, the barber is a woman.
Can God create a rock so large that he himself cannot lift it?
In light of the leaks about Michael Flynn, just about everyone, from America’s allies to its intelligence officers, seems to be reconsidering how much intelligence they share with Donald Trump’s White House. I can’t think of anything more damaging to President Trump’s ability to govern than various domestic and allied agencies (semi-)publicly mulling whether or not to share information with him.
It’s not that I think this will cause irreparable damage to his public image. At this point, you can be swayed by other people’s opinion of Trump or you can’t. Trump’s base doesn’t care what a bunch of intelligence geeks in suits think about him. They just want to see jobs come back.
It’s just that Trump is already beginning to experience one of the most significant failure modes of single-person rule: isolation.
One of the little talked about virtues of democracy is how its decentralizing tendency makes...
When Ken over at Popehat gets into a full-on rant about people who don’t understand rights, I’m often sympathetic. It was Ken who made me understand that people who don’t understand rights are a threat to everyone. When many people are misinformed about their rights, those rights become easier to take away.
When Scott at Slate Star Codex talks about good social norms, I’m very keen to listen. Scott helped me understand that social groups are worth cultivating and that it’s a good idea to think about how your group norms will change your experience of interacting with people.
So, when Tessa linked me to a Slate Star Codex post where Scott disagreed with Ken, I had some thinking to do.
The Slate Star Codex post is a response to a piece Ken put up after the furor around Justine Sacco’s...
Annoyed with me describing If on a winter’s night a traveller as “very literary” one too many times, my partner Tessa challenged me to explain what I meant by “literary”.
This presented a problem, because I’ve been using literary as a shorthand for “that type of book that people who review books for a living get really excited about but I never seem to like” – basically as a category label, not as a descriptive phrase. Even worse, If on a winter’s night a traveller didn’t really fit into the category anyway; it’s a book that I’m heartily enjoying.
To answer Tessa’s question, I had to abandon using “literary” as a category label and instead treat it as a handle for a concept. But first, I needed a concept.
Imagine you ask me to tell you a story and I start with these famous six...