Author Archives: Wyrd Smythe

About Wyrd Smythe

Unknown's avatar
The canonical fool on the hill watching the sunset and the rotation of the planet and thinking what he imagines are large thoughts.

Friday Notes (May 13, 2022)

Not that anyone should care, but it’s Friday the 13th today! More to the point, it’s Friday, and I’ve been remiss about Friday Notes this year. The one last January is the only one I’ve posted so far. Big part of that is having, at long last, reduced my note pile enough that I don’t feel so (word) pressed.

Some of it is the ongoing problem of ennui. The eleven-year blog anniversary is approaching, and that tends to ignite old questions about why I bother to do this. By now I’ve left some sort of small scrawl on the internet wall and explored many of the topics that drove me to blogging.

On the other hand, the pile isn’t by any means gone, so let’s get to it…

Continue reading


BB #81: Animal Gods

I’ve lived with a Beagle, a Keeshond, a Belgian Shepard, a Great Dane, and a Black Labrador. I’ve dog-sat a German Shepard, two Black Labs, and the delightful Bentley, an American Bully.

I’m not bragging or claiming expertise (many have much more and far broader experience living with dogs). Just saying I’ve spent some solid hours with dogs pondering what the world looks like to them, how they perceive things.

It’s often struck me that, while humans may imagine and believe in gods (or not), animals live in a world where apparent gods walk among them. Dogs, and some other animals, live with their god(s) — depend on them and are subject to their every whim.

Continue reading


Our Robot Friends

We live in an era of unprecedented change. My grandparents’ generation saw the rise of the automobile. My parents’ generation saw the rise of space travel. My generation saw the rise of the digital world and social technology. The current generation is seeing the rise of the robots.

A bit over two years ago I posted An Uprising of Robots. (We haven’t picked a collective noun for robots, but my submissions are an uprising of and a clank of.) That post featured Atlas, the Boston Dynamics humanoid robot, and Spot, the four-legged “dog” robot (seen in the image here).

Since I posted that, Spot has become a hit on YouTube and has entered the work force, so here’s a Wednesday Wow starring Spot, the $75,000 robot dog.

Continue reading


TV Tuesday 5/10/22

One of many benefits gained when I cut the cable and subscribed to Netflix and Hulu was access to a very large catalog of Japanese anime. Until then I was largely at the mercy of the Cartoon Network cable channel and rented videos. While I’ve so far barely scratched the surface of the Netflix catalog, I have been steadily working my way through Hulu’s.

Recently I’ve enjoyed two there: Is It Wrong to Try to Pick Up Girls in a Dungeon? and xxxHolic. The former is a fun medieval fantasy adventure series (with expected twists and unexpected depth). Saying the latter is about a beautiful hard-drinking witch who grants wishes is accurate but misses the point.

It’s a lot more interesting than that.

Continue reading


Euler Spirals and Pi Paths

I posted a while back about the wonders of Fourier Curves, and I’ve posted many times about Euler’s Formula and other graphical wonders of the complex plane. Recently, a Numberphile video introduced me to another graphical wonder: Euler Spirals. They’re one of those very simple ideas that results in almost infinite variety (because of chaos).

As it turned out, the video (videos, actually) led to a number of fun diversions that have kept me occupied recently. (Numberphile has inspired more than a few projects over the years. Cool ideas I just had to try for myself.)

This all has to do with virtual turtles.

Continue reading


Back to Plato’s Line

Last February I posted about how my friend Tina, who writes the Diotima’s Ladder blog, asked for some help with a set of diagrams for her novel. The intent was to illustrate an aspect of Plato’s Divided Line — an analogy about knowledge from his worldwide hit, the Republic. Specifically, to demonstrate that the middle two (of four) segments always have equal lengths.

The diagrams I ended up with outlined a process that works, but I was never entirely happy with the last steps. They depended on using a compass to repeat a length as well as on two points lining up — concrete requirements that depend on drawing accuracy.

Last week I had a lightbulb moment and realized I didn’t need them. Lurking right in front of my eyes is a solid proof that’s simple, clear, and fully abstract.

Continue reading


Objective Collapse

In the last four posts (Quantum Measurement, Wavefunction Collapse, Quantum Decoherence, and Measurement Specifics), I’ve explored the conundrum of measurement in quantum mechanics. As always, you should read those before you read this.

Those posts covered a lot of ground, so here I want to summarize and wrap things up. The bottom line is that we use objects with classical properties to observe objects with quantum properties. Our (classical) detectors are like mousetraps with hair-triggers, using stored energy to amplify a quantum interaction to classical levels.

Also, I never got around to objective collapse. Or spin experiments.

Continue reading


Measurement Specifics

In the last three posts (Quantum Measurement, Wavefunction Collapse, and Quantum Decoherence), I’ve explored one of the key conundrums of quantum mechanics, the problem of measurement. If you haven’t read those posts, I recommend doing so now.

I’ve found that, when trying to understand something, it’s very useful to think about concrete real-world examples. Much of my puzzling over measurement involves trying to figure out specific situations and here I’d like to explore some of those.

Starting with Mr. Schrödinger’s infamous cat.

Continue reading


Quantum Decoherence

In the last two posts (Quantum Measurement and Wavefunction Collapse), I’ve been exploring the notorious problem of measurement in quantum mechanics. This post picks up where I left off, so if you missed those first two, you should go read them now.

Here I’m going to venture into what we mean by quantum coherence and the Yin to its Yang, quantum decoherence. I’ll start by trying to explain what they are and then what the latter has to do with the measurement problem.

The punchline: Not very much. (But not exactly nothing, either.)

Continue reading


Wavefunction Collapse

The previous post began an exploration of a key conundrum in quantum physics, the question of measurement and the deeper mystery of the divide between quantum and classical mechanics. This post continues the journey, so if you missed that post, you should go read it now.

Last time, I introduced the notion that “measurement” of a quantum system causes “wavefunction collapse”. In this post I’ll dig more deeply into what that is and why it’s perceived as so disturbing to the theory.

Caveat lector: This post contains a tiny bit of simple geometry.

Continue reading