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Hey folks! Fireside this week. A bit of a change-up in terms of the coming attractions. I had planned to start “Textiles, How Did They Make It?” next, but I want to do a bit more reading on some of the initial stages of textile production (that is, the production of raw flax and wool) … Continue reading Fireside Friday, November 27, 2020 → How much window space does an apartment need, relative to its area, and how does this affect building style? A fascinating post from about a year ago on Urban Kchoze makes the argument that modern North American buildings are too deep – Simon calls them obese. Simon contrasts the typical building style in major cities […] Talking to Marco Chitti about the history of Italian construction always fills me with hope. He’s been gathering data about metro construction in Milan and Rome, and told Elif, Eric, and me about the issue of building through constrained areas. Historic city centers are constrained because tunneling can damage buildings – the first two lines […]
Welcome to this week's edition of "building a startup in 2020," in which all
your meetings are suddenly remote, and you probably weren't prepared for it.
I know I wasn't. We started a "fully remote" company back in 2019, but that
was supposed to mean we still got together in person every month or two to
do strategic planning, share meals, and resolve any accumulated
conflicts. Well, not this year. Instead, we had to learn to have better
remote meetings, all while build… A UBI (e.g. paying every adult American $8k/year) would reduce recipient’s need for money and so may reduce their incentive to work. This is frequently offered as an argument against a UBI (or as an argument for alternative policies like the EITC that directly incentivize work). This argument is sometimes presented as economically hard-headed realism. … More It’s not economically inefficient for a UBI to reduce recipient’s employment Continuing my series on different traditions of building urban rapid transit, today it’s time for Germany and Austria, following the posts on the US, the Soviet bloc, Britain, and France. Germany had a small maritime empire by British and French standards and lost it all after World War 1, but has been tremendously influential on […] We’re going to be a bit silly this week (in part because the ending of this compressed semester has left me with little time) and talk about the recently released historical action-RPG computer (and console) game, Assassin’s Creed: Valhalla, set in 9th century Norway and England. And, as with the last time we did this, … Continue reading Collections: Assassin’s Creed: Valhalla and the Unfortunate Implications → Matt Yglesias has a blog post called Make Blue America Great Again, about governance in rich liberal states like New York and California. He talks about various good government issues, and he pays a lot of attention specifically to TransitMatters and our Regional Rail project for the Boston region, so I feel obliged to comment […] Ever since reading Brooks-Liscow on the growth in American road construction costs since the 1960s, I’ve been interested in the surplus extraction theory of costs. The authors call their main theory citizen voice, in which local groups can use litigation to extract the social surplus generated by infrastructure construction. I’d like to go more deeply […] This week, I want to talk about the discipline of military history: what it is, why it is important and how I see my own place within it. This is going to be a bit of an unusual collections post as it is less about the past itself and more about how we study the … Continue reading Collections: Why Military History? → Crossposted from world spirit sock puppet. AI related disasters are often categorized as involving misaligned AI, or misuse, or accident. Where: misuse means the bad outcomes were wanted by the people involved, misalignment means the bad outcomes were wanted by … Continue reading → Crossposted from world spirit sock puppet. Should social media label statements as false, misleading or contested? Let’s approach it from the perspective of what would make the world best, rather than e.g. what rights do the social media companies have, … Continue reading → This week, as an addendum to our four(and a half)-part (I, II, III, IVa, IVb) look at pre-modern iron and steel production, we’re going to look at two alternative regional processes, where they fit into the entire iron production process that we detailed already, how they worked and what kind of product they produced. In … Continue reading Collections: Iron, How Did They Make It, Addendum: Crucible Steel and Cast Iron → Crossposted from world spirit sock puppet. Sometimes we think of ‘artificial intelligence’ as whatever technology ultimately automates human cognitive labor. I question this equivalence, looking at past automation. In practice human cognitive labor is replaced by things that don’t seem … Continue reading → Hey folks! Fireside this week, but I promise we’ll see that promised addendum on pre-modern crucible steel and cast iron next week. In the meantime, as you are no doubt inescapably aware, the United States (where I live) is having an election. I mostly avoid politics itself on this blog and that’s something I intend … Continue reading Fireside Friday, October 30, 2020 → Crossposted from world spirit sock puppet/meteuphoric. A thing I liked about The Social Dilemma was the evocative image of oneself being in an epic contest for one’s attention with a massive and sophisticated data-nourished machine, tended by teams of manipulation … Continue reading → Crossposted from world spirit sock puppet/meteuphoric. I watched The Social Dilemma last night. I took the problem that it warned of to be the following: Social media and similar online services make their money by selling your attention to advertisers … Continue reading → I’ve emailed my list to enough friends that I should really just post it. Podcasts have been a big part of Lily’s life since around age 4. Before that, she spent a lot of her time demanding of any available adult, “READ. READ TO ME” (once she literally asked the cat, who did not read […] I listened to the “Folk Songs” album from Kronos Quartet, partly because of the two Rhiannon Giddens songs. I was interested to know the backstory on her songs, but I got annoyed by reading reviews of these songs that seemed to miss critical pieces. The only review I could find of “Lullaby” called it “sprightly”, […] I spent way too long figuring out the how to make video calls feel natural. Here’s the best advice I came up with. Most people benefit significantly from privately funded public goods (e.g. Wikipedia). If we all contribute to such public goods, then we can all end up better off. But as an individual it’s almost never a good return on investment. I think of supporting such public goods as being a good citizen, but that leaves open … More Distributed public goods provision
I came up with this game. In the game one person thinks of something
and then gives the other person a clue. And the other person writes a
guess down on a blackboard or a piece of paper. Or really anything
you have that's laying around that's available for writing on. The
other person says whether it's right or wrong. And then when they get
it right the other person takes a turn. When they get it wrong the
other person gives them another clue and they guess again. It has to
be clos… I read David Lancy’s “The Anthropology of Childhood: Cherubs, Chattel, and Changelings” and highlighted some passages. A lot of passages, it turns out. [content note: discussion of abortion and infanticide, including infanticide of children with disabilities, in “Life and Death” section but not elsewhere] I was a sociology major and understood anthropology to be basically […]
This is jewelry I made, but I didn't really make all of them. My au
pair Erika made a few of them but I made most of them. I made at
least six of them. Erika made two.
Free delivery within a half hour bike ride of West Somerville.
Otherwise I will send it to you in the mail. You pay for shipping.
Email my dad, Jeff (jeff@jefftk.com) if you want to buy
something.
Butterfly Bracelet
It costs $8. I was thinking about butterflies when I made this
bracelet.
Pom-pom Bracelet
I was thinking about pom-p…
For kids one to ten. I might add some other episodes later.
Part 1
Part 2
Part 3
no badges • close slack • check email 1x/day • keep todos visible • use rss • kindle + rss • hide phone apps • block ui elements • block sites • better window switcher • no tabs how to ration your shower thoughts • care viscerally • monotask • evade obligations • timebox bullshit Impatience is the best way to get faster at things. And across a surprising number of domains, being really fast correlates strongly with being effective.
A few years ago I wrote The World in Which IPv6 was a Good
Design. I'm still
proud of that article, but I thought I should update it a bit.
No, I'm not switching sides. IPv6 is just as far away from universal
adoption, or being a "good design" for our world, as it was three
years ago. But since then I co-founded a company that turned out to be
accidentally based on the principles I outlined in that article. Or
rather, from turning those principles upside-down.
In that article, I exp… Computers can be understood • Choose Boring Technology • The Wrong Abstraction • Falsehoods Programmers Believe About Names • The Hiring Post • The Product-Minded Engineer • Write code that is easy to delete, not easy to extend • The Law of Leaky Abstractions • Reflections on software performance • Notes on Distributed Systems for Young Bloods • End-to-End Arguments in System Design • Inventing on Principle
Any time you have a benchmark that gets taken seriously, some people will start gaming the benchmark. Some famous examples in computing are the CPU benchmark specfp and video game benchmarks. With specfp, Sun managed to increase its score on 179.art (a sub-benchmark of specfp) by 12x with a compiler tweak that essentially re-wrote the benchmark kernel, which increased the Sun UltraSPARC’s overall specfp score by 20%. At times, GPU vendors have added specialized benchmark-detecting code to their… When I was 21 a friend introduced me to a volume of poems by the 14th-century Persian poet Hafiz, translated by Daniel Ladinsky. I loved them, and eventually named this blog for one of my favorite ones. At some point I read more and found that Ladinsky’s “translations” were more like riffs on themes in […] Before I had children, I liked to think about how I would decorate their rooms. I collected Pinterest boards full of images like this, full of colorful, whimsical objects. Now that I’ve actually tried it, I see more of the backstory behind these photos. Know who assembled, maintained, and photographed these rooms? Adults. What kind […] I don’t like to make a big thing out of identifying with my generation, but millenials have one things right: avocado toast is the perfect breakfast food. This is my very simple and quick recipe, which, yes, I did invent. Recipe time: ~5 minutes Yields: 4 slices Ingredients: 4 slices of bread for toasting (I […] It is normal and healthy to have regrets. I have lived in mortal fear of regrets most of my life. And guess what? I regret it. There’s no getting around them– just listen to your feelings and learn from them. “I’m not okay, and that’s okay” is a popular saying for dealing with grief. We […]
Today I trimmed lots of milkweed with my daddy. I trimmed it because
it was taking over the sidewalk and I thought that it was taking over
too much of the sidwalk. So did my dad, so we went home, asked my mom
for some garden shears, came back, and then I cut all of the milkweed
down. Or, at least all that was blocking the path.
A lot of people seem to think that distributed tracing isn't useful, or at least not without extreme effort that isn't worth it for companies smaller than FB. For example, here are a couple of public conversations that sound like a number of private conversations I've had. Sure, there's value somewhere, but it costs too much to unlock.
I think this overestimates how much work it is to get a lot of value from tracing. At Twitter, Rebecca Isaacs was able to lay out a vision for how…
We spent one day1 building a system that immediately found a mid 7 figure optimization (which ended up shipping). In the first year, we shipped mid 8 figures per year worth of cost savings as a result. The key feature this system introduces is the ability to query metrics data across all hosts and all services and over any period of time (since inception), so we've called it LongTermMetrics (LTM) internally since I like boring, descriptive, names.
This got started when I was looking for a st… The plain fact is that there are no obvious moral consequences to how people entertain themselves in their leisure time. The conviction that artists and connoisseurs are morally advanced is a cognitive illusion, arising from the fact that our circuitry for morality is cross-wired for with our circuitry for status. — Steven Pinker, The Blank Slate […]
Yesterday night I cooked dinner. My dad helped a bit but I mostly
made it. The things I made were:
Avocado sauce
Rice
Spinach
Cheese
Beans with onions and spices
Tomatoes with garlic
The people in my house liked it very much.
Disclaimer: I’m going to say this once. Obviously, I am not happy about the coronavirus’s threat to public health or the economic toll it’s taking. I do not think the existence of this pandemic is good. Just so happens that social distancing and remote work suits me. I am truly an introvert, and this whole […] When you get married, you are creating a family. One way to reinforce that is to have the same name. But whose name do you pick? Do you hyphenate? Do you not hyphenate, and never have a simple time filling out a form again (like my friends the Rabideau Childerses)? Do you make a new […]
As a "fully remote work" company, we had to make some choices about the
technologies we use to work together and stay in touch.
We decided early on - about the time we realized all three cofounders
live in different cities - that we were going to go all-in on remote work,
at least for engineering, which for now is almost all our work. As several
people have pointed out before, fully remote is generally more stable than
partly remote. In a partially remote team, the remote workers seem to …
I've been comparing notes with people who run corporate engineering blogs and one thing that I think is curious is that it's pretty common for my personal blog to get more traffic than the entire corp eng blog for a company with a nine to ten figure valuation and it's not uncommon for my blog to get an order of magnitude more traffic.
I think this is odd because tech companies in that class often have hundreds to thousands of employees. They're overwhelmingly likely to be better …
My hobby: opening up McIlroy’s UNIX philosophy on one monitor while reading manpages on the other.
The first of McIlroy's dicta is often paraphrased as "do one thing and do it well", which is shortened from "Make each program do one thing well. To do a new job, build afresh rather than complicate old programs by adding new 'features.'"
McIlroy's example of this dictum is:
Surprising to outsiders is the fact that UNIX compilers produce no listings: printing can be do… Before we had kids, Jeff and I fostered a couple of cats. One had feline AIDS and was very skinny. Despite our frugal grocery budget of the time, I put olive oil on her food, determined to get her healthier. I knew that stray cats were not a top global priority, and that this wasn’t even the best way of helping stray cats, but it was what I wanted to do.. . . . .The bike path near where I live has a lot of broken glass on the ground nearby. My family likes to go barefoot in the summer, and a lo… Creating really good outcomes for humanity seems hard. We get bored. If we don’t get bored, we still don’t like the idea of joy without variety. And joyful experiences only seems good if they are real and meaningful (in some sense we can’t easily pin down). And so on. On the flip side, creating really … More Hedonic asymmetries Suppose that a kingdom contains a million peasants and a thousand nobles, and: Each noble makes as much as 10,000 peasants put together, such that collectively the nobles get 90% of the income. Each noble cares about as much about themselves as they do about all peasants put together. Each person’s welfare is logarithmic in … More Moral public goods
Long ago, I wrote git-subtree
to work around some of my annoyances with git submodules. I've learned a lot
since then, and the development ecosystem has improved a lot (shell scripts
are no longer the best way to manipulate git repos? Whoa!).
Thus, I bring you: git-subtrac.
It's a bit like git-subtree, except it uses real git submodules. The
difference from plain submodules is that, like git-subtree, it encourages
you to put all the contents from all your submodules into your superproject
r… Using real money in prediction markets is all-but-illegal, and dealing with payments is a pain. But using fake money in prediction markets seems tricky, because by default players have no skin in the game. Here’s a simple proposal that I think might work reasonably well without being too hard to try: Create a service that … More Prediction markets for internet points? I would say I’m alllmost recovered from the all-nighter I pulled this weekend calling the graveyard shift (4AM–7AM)—but heck, what a blast! Here’s the program I called (most of these walked through minimally or not at all):
50/50 — Bob Isaacs
Fiddler’s Fling — Cary Ravitz (Will Mentor var.)
Maliza’s Magical Mystery Motion — Cary Ravitz
Rollin’ to the Grey Eagle — Hank Morris
Read Between the Lines — Bob Isaacs
The Young Adult Rose — David Kaynor
Treasure of the Soda Bar — Maia McCormick
Cheat Lake Twir… Last weekend, I called my first techno contra (as part of a double dance at CDNY to celebrate the wedding of two of our lovely dancing humans 😍). It turns out, to no one’s surprise, that calling techno is a fair bit different from calling a regular evening dance. Here are my reflections on calling my first techno (including a bunch of great advice from folks on SharedWeight’s Callers’ Listserv).
+ If you can, listen to the tracks in advance!
I worked with DJ Flourish (Mark Moore) from Philly—he’… When people come to an effective altruism event for the first time, the conversation often turns to projects they’re pursuing or charities they donate to. They often have a sense of nervousness around this, a feeling that the harsh light of cost-effectiveness is about to be turned on everything they do. To be fair, this is a reasonable thing to be apprehensive about, because many youngish people in EA do in fact have this idea that everything in life should be governed by cost-effectiveness. I&… Hey experienced contradancers! Have you been looking for a new way to contribute to your dance community? Here’s one that I’ve been trying. It’s really small, and has the potential to make a really big impact on the quality of our dances, especially as more and more of us get on board with it. Ready? Here it is:
Be quiet when the caller starts talking, and don’t talk through the walkthrough.
That’s it. Really. If you want to go one step further, you can be the person who gently reminds people to … I’ve been contradancing for over eight years, and can jump into even the most complex and falling-apart of contras and still have some idea of what’s going on. But last summer at English-Scottish-Contra Week at Pinewoods, I tried Scottish Country Dance for the first time and I had an experience I haven’t had for quite a while: I was completely at sea in a set dance.
Scottish isn’t too different from contra and English, and I got along okay when I had a walkthrough. (Not great, mind you, but I ma… I’m late to the party, but I've been thinking about the documentary “The Life Equation” about how people use data to decide make life-and-death decisions. The central example is a woman named Crecencia, a mother of seven who lives in rural Guatemala and has cervical cancer. The doctor treating her knows that screening other women for cancer is more cost-effective than treating this woman, and that the community doesn’t have enough money to fully fund both. The filmmaker writes: “Crecencia’s… We’re often taught about the importance of “finding your purpose” as you set out into the world and choose your pathway forward. The words change–sometimes it’s ‘purpose’, but you might also find your ‘bliss’, your ‘passion’, your ‘voice’, your ‘career’, or your ‘calling’–but the narrative remains the same. Whatever it is, you’ve gotta find it. And … Continue reading On Finding Purpose →
The post On Finding Purpose appeared first on Hollis Easter .
Purpose I play music on stage, and that usually means using amplification (PA) systems. The bands I play with (Frost and Fire, The Turning Stile+, and others) typically have a bunch of musicians playing a host of instruments, each with their own microphones. Consequently, we need a lot of mic mute switches. The enemy of … Continue reading XLR Mic Mute Switch with LEDs – Proof of Concept →
The post XLR Mic Mute Switch with LEDs – Proof of Concept appeared first on Hollis Easter .
How to test thermostat and thermal fuse units on kitchen appliances (espresso machine, coffee maker, rice cooker, pressure cooker) with a multimeter.
The post How to Test Thermostat/Thermal Fuse in Kitchen Tools appeared first on Hollis Easter .
Delicious crispy caramelized zucchini with garlic, basil, mint, red wine vinegar, and olive oil. Easily scales up to use all the zucchini in the house, and it's quick! Googootz!
The post Use Up That Zucchini – Googoots / Cucuzza Recipe appeared first on Hollis Easter .
Jennifer Battle asked the National Association of Crisis Organization Directors’ mailing list for some uplifting hotline memes to use in training, since there didn’t seem to be that many available. Here are my first responses. (please feel free to use these if you like)
The post Hotline Memes appeared first on Hollis Easter .
Here are three places Jeff and I are donating this year. The first two are similar to what we’ve been doing for years, and the third represents a change.Direct workJeff and I want to support work that directly makes the world a better place. (Some arguments against falling into a “meta trap” here.) As usual for us, this year we’ve given just over half our donations to direct work. We made these donations to the Against Malaria Foundation, one of GiveWell’s top picks, except for small amounts th… Last week the Boston Effective Altruism group had a discussion on self-care for altruists. I've written about the topic before, but I wanted to share some of the more practical advice people had. Think beyond day-to-day choicesSelf-care isn’t just short-term decisions like whether to make time for yoga tonight. It’s larger life decisions too, like what job to take, where to live, how to budget money, and how to make time for partners, friends, and family.For me, having children was self-car… My latest blog post helps to explain a few statistical/ML models by whether they learn an interaction in a toy example Since Github Pages is way nicer than Blogger, I'm writing over there at http://davidchudzicki.com now. To keep old posts alive, these pages at http://blog.davidchudzicki.com will remain as is. I was converting a PNG (which represented partials sums of the Weierstrass elliptic function) to a GIF and was confused about why the PNG looked fine at low resolution but the GIF looked bad. Then I learned that GIFs can only use 256 colors and we have to do something to map the many colors to the fewer colors. We could just use the closest available color in the new set of colors, but that results in sharp jumps and "color banding" where the colors change. So instead we use (and Image… On a visit to San Francisco's Exploratorium, I saw an oscilloscope they had making Lissijous curves. So I decided to make a version in d3: You can play with it (and see the code) here This post will describe a way I came up with of fitting a function that's constrained to be increasing, using Stan. If you want practical help, standard statistical approaches, or expert research, this isn't the place for you (look up “isotonic regression” or “Bayesian isotonic regression” or David Dunson, whose work Andrew Gelman pointed me to). This is the place for you if you want to read about how I thought about setting up a model, implemented the model in Stan, and created graphic…
Fireside Friday, November 27, 2020
Building Depth and Window Space
More on Station Costs
Thoughts you mightn't have thunk about remote meetings
It’s not economically inefficient for a UBI to reduce recipient’s employment
The German Way of Building Rapid Transit
Collections: Assassin’s Creed: Valhalla and the Unfortunate Implications
Governance in Rich Liberal American Cities
Surplus Extraction
Collections: Why Military History?
Misalignment and misuse: whose values are manifest?
Tweet markets for impersonal truth tracking?
Collections: Iron, How Did They Make It, Addendum: Crucible Steel and Cast Iron
Automated intelligence is not AI
Fireside Friday, October 30, 2020
Whence the symptoms of social media?
But what kinds of puppets are we?
Children’s podcast recommendations
Review of two Rhiannon Giddens songs
How to make video calls almost as good as face-to-face
Distributed public goods provision
Learning Game
Notes on “Anthropology of Childhood” by David Lancy
Jewelry
Pony Podcast
Tools for keeping focused
Attention is your scarcest resource
Be impatient
IPv4, IPv6, and a sudden change in attitude
Essays on programming I think about a lot
How do cars fare in crash tests they're not specifically optimized for?
Quick note on the name of this blog
On scruffy spaces
My personal avocado toast recipe
Don’t fear regret
Gardening
A simple way to get more value from tracing
A simple way to get more value from metrics
Embrace mediocre tastes, true happiness
Dinner
Finding home in the time of coronavirus
Have it all: take your spouse’s name socially
Several grumpy opinions about remote work at Tailscale
How (some) good corporate engineering blogs are written
The growth of command line options, 1979-Present
It's ok to feed stray cats
Hedonic asymmetries
Moral public goods
git-subtrac: all your git submodules in one place
Prediction markets for internet points?
Graveyard Shift at Dawn Dance
Reflections on My First Techno Contra
You have more than one goal, and that's fine
Improve Your Community With This One Weird Trick!
Words Don't Help Beginners
No one is a statistic
On Finding Purpose
XLR Mic Mute Switch with LEDs – Proof of Concept
How to Test Thermostat/Thermal Fuse in Kitchen Tools
Use Up That Zucchini – Googoots / Cucuzza Recipe
Hotline Memes
Two standard donations and one new one
Practical steps for self-care
An Interaction or Not? Understanding a Few ML Algorithms via an Example with No Evidence Either Way
dithering
Interactive Lissijous Curves in d3
A Bayesian Model for a Function Increasing by Chi-Squared Jumps (in Stan)