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Afuega’l Pitu

Saturday occupation: eating spicy cheese made of cow milk and paprika.

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Shelter from the Storm

Mars soundtrack (the National Geographic tv-show) is fantastic. Nick Cave is just the perfect voice to convey that feeling of exploration and fear. Moon, Interstellar, The Martian, etc; it seems sci-fi movies got an appreciation for soundtracks that have a major role in the film – and I enjoy that.

As much as I like Cave’s main theme for Mars, after a few episodes, I was in the need of something like Dylan’s Shelter from the Storm. Exploration needs joy and celebration.

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All English How I work Lifestream

Touch typing in Dvorak

On November 2016 I had a free month between jobs. Apart from some resting, reading, and general preparations for my new adventure, I still had quite a bit of free time to do new things or build good habits. It was while cleaning my office that I found a keyboard I had bought a couple of years back:

Its layout was a beautiful matrix -which is good for your fingers- and came with Dvorak by default. So it struck me: how about improving my typing during the coming weeks?

As a programmer, typing is an essential skill for me. I had been doing it for more than 15 years in a learn-by-doing way, and I plan to keep typing for years to come. I thought it would be fun to spend a couple of hours a day training in touch-typing and give Dvorak a second try. And so I did.

How it felt

Before I switched, I recorded about 15 typing sessions at TypeRacer using the QWERTY layout, which logs typing speed (words per minute) and accuracy (% characters right over the total). I was at 67 wpm and about 95% accuracy at the time.

Progress was very humbling at the beginning; it felt like learning to walk again, and I swear that, sometimes, I could even hear my brain circuits being reconfigured! After a few weeks, though, I was at 40 wpm and, by the end of the month, I was at 50 wpm. I stopped quantifying myself by then: as I started working, I had a lot of typing to do anyway.

During the first months, real-time communication -chat, slack- was the only moment I struggled and felt like perhaps the switch wasn’t a good idea. I don’t know what people thought of me, but my writing at the time was typing-bounded – I was certainly a very slow touch-typist by my own standards. But time passed and I improved.

Spáñish Dvorak and symbols

Throughout the process I changed my setup quite a bit:

  1. I started by using the Programmer Dvorak layout with a TypeMatrix keyboard.
  2. After a few months, I switched back to my good old ThinkPad keyboard because having to use a mouse again after years without it was painful.
  3. A few months later, I switched to the Dvorak international layout, because the Programmers Dvorak didn’t quite suit me.
  4. Then, I tweaked the common symbols I use for programming so they were more ergonomic for my daily tasks.
  5. Although the bulk of my typing is in English, I still need to write decent Spáñish, which basically means using tildes on vowels and ñ so I switched to the Spanish Dvorak.
  6. Finally, Spanish Dvorak wasn’t the improvement I was looking for, so I’ve ended up accommodating tildes, ñ, and other symbols in the Dvorak international as I see fit.

This is how my layout looks like today:

All these changes through the year have affected my ability to build muscle memory – sometimes I still need to look at some specific symbol on the keyboard. However, the current version has been unchanged for months, so I only need a bit more time for them to stick.

Performance to date

Given that I was a QWERTY user for 15 years, I thought I would give the new layout a year before comparing any numbers. The fair thing to do would be comparing after 15 years, but I’m a bit impatient for that. So I went to TypeRacer and noted down the results for about 20 races:

In terms of speed, it looks like I’m mostly there. My median speed now is 65 words per minute, 2 wpm less than before. I had a higher peak (83 vs 79), but I was under 60wpm in more sessions.

In terms of accuracy, I’ve improved a bit. My median accuracy has increased by 1,5 points, and I had only 2 sessions below 95%.

Coda

My accuracy has improved, and having fewer mistakes to correct will help me become a faster typist as time passes. By learning to touch-type I also have grown more endurance.

This experiment was very humbling. I believe it increased my brain plasticity by an order of magnitude. Although I hope to improve my numbers, what’s more important to me is to promote a healthy use of the tools I heavily depend upon.

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All English Society

Turns out algorithms are racists

«Technology is neither good nor bad; nor is it neutral.»

Melvin Kranzberg’s six laws of technology

One of the things I was very into a decade ago was studying the intertwine between technology, culture, and society. From those years, I developed a sensitivity about my role as an engineer, or as an enabler of possible worlds.

This is one of the things I wanted to avoid:

A person isn’t able to clean his hands because the machine sensors are only prepared to detect white hands! That’s a horror story that could make a BlackMirror episode.

This made me think about the mainstream perception of Machine Learning and Artificial Intelligence technology. Lately, some friends of mine are sharing with me clickbait news like Facebook shuts down robots after they invent their own language. They ask me if robots could take over, soon. Well, I can tell you something: at this stage of technology, I am not worried about robots taking over. What I do worry about is how our inability to understand technology creates racists algorithms that reinforce our biases.

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In this paper, we make the case that the high-productivity digital firms are starting to generate a new middle class. It’s a virtuous circle. Consumers flock to those firms because they offer lower prices and better service. Workers migrate there from low-productivity firms because the high-productivity firms offer better wages for the same occupations—and, often, steadier hours and better benefits.

— The Creation of a New Middle Class?: A Historical and Analytic Perspective on Job and Wage Growth in the Digital Sector. [PDF]

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All Lifestream

Fun with basic

I’ve found this written by a kid at the centre for computer history, in Cambridge.

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Punting at Cam bridge

Punting at Cam bridge.

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All Books English Library Lifestream

Crafting interpreters

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All Books Español Library Lifestream

El día antes de la revolución

Saturday’s occupations.

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Lifestream

Fondue

Fondue.