About Wyrd Smythe
The canonical fool on the hill watching the sunset and the rotation of the planet and thinking what he imagines are large thoughts.
Initially I thought, for the first time in the the Brain Bubbles series, I have a bubble actually related to the brain. When I went through the list, though, I saw that #17, Pointers!, was about the brain-mind problem, although the ideas expressed there were very speculative.
As is usually the case when talking about the mind and consciousness, considerable speculation is involved — there remain so many unknowns. A big one involves the notion of free will.
I just read an article that seems to support an idea I have about that.
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20 Comments | tags: brain mind problem, computationalism, free will, human brain, human mind, theory of mind | posted in Brain Bubble
Trigonometry is infamously something most normal people fear and loath. Or at least don’t understand and don’t particularly want to deal with. (In fairness, it doesn’t pop up much in regular life.) As with matrix math, trig often remains opaque even for those who do have a basic grasp of other parts of math.
Excellent and thorough tutorials exist for those interested in digging into either topic, but (as with matrix math) I thought a high-altitude flyover might be helpful in pointing out important concepts.
The irony, as it turns out, is that trig is actually pretty easy!
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31 Comments | tags: cosine, sine, sine wave, trigonometry | posted in Math, Sideband
There are many tutorials and teachers, online and off, that can teach you how to work with matrices. This post is a quick reference for the basics. Matrix operations are important in quantum mechanics, so I thought a Sideband might have some value.
I’ll mention the technique I use when doing matrix multiplication by hand. It’s a simple way of writing it out that I find helps me keep things straight. It also makes it obvious if two matrices are compatible for multiplying (not all are).
One thing to keep in mind: It’s all just adding and multiplying!
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7 Comments | tags: matrix math, matrix multiplication | posted in Math, Sideband
Last time I set the stage, the mathematical location for quantum mechanics, a complex vector space (Hilbert space) where the vectors represent quantum states. (A wave-function defines where the vector is in the space, but that’s a future topic.)
The next mile marker in the journey is the idea of a transformation of that space using operators. The topic is big enough to take two posts to cover in reasonable detail.
This first post introduces the idea of (linear) transformations.
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13 Comments | tags: linear algebra, matrix transform, QM101, quantum mechanics, vector space, vectors | posted in Math, Physics
If you know me, you know I’m not much a fan of official holidays, especially those that seem a bit on the artificial side (although National Waffle Day is something I would celebrate). That said, I’m not entirely untouched by a holiday that demands chocolates. Or roses, one of the very few flowers I do love. (Rose gardens are awesome.)
So I was delighted to see that, not only do Minnesotans have good sensibilities when it comes to voting politically, we also have good sensibilities when selecting our favorite Valentine’s Day candy.
See full map below. ION: Saw a cool new SF movie last night!
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24 Comments | tags: candy, chocolate, science fiction movies, SF Movies, Space Sweepers, Valentine's Day | posted in Life, Movies
In what seems the distant past of late summer 2019, I posted about an interesting science fiction novel by Greg Egan, Quarantine (1992). The post didn’t get many views back then — only 13 that August, and only 27 total by the end of the year. And through 2020, it only racked up another 37 views. (That’s 64 total for those keeping score at home.)
Then, this January, the post got 257 views — 161 in the first three days. After being largely ignored for a year-and-a-half, something made the post go mildly viral. No one commented, so I have no idea how or why the post got so much traffic.
I have a thought it might have to do with the title.
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6 Comments | tags: COVID-19, Greg Egan, science fiction, science fiction books, SF, SF Books | posted in Books, Sci-Fi Saturday
I’m feeling outraged and depressed (because politics), plus it’s up to -2 outside (from -10 this morning), so I’m feeling very lazy about writing a post. (And I’m going to have to go out into the chill and shovel the light snowfall off my sidewalk and driveway. Brr!)
Therefore I’m offering up a lightly edited political piece I’ve had sitting in my folder of potential posts… since 2012. Which makes it both outdated and yet oddly still relevant. It’s a short piece, originally intended to be a Brain Bubble, but I’m just going to throw it out there as a regular post.
It’s a rumination on the differences between Left and Right in politics.
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10 Comments | tags: conservative, Democrat, progressive, Republican | posted in Politics
British author and philosopher Aldous Huxley blew my mind with what seemed like his incredible prescience in Brave New World (1932). In my post last December, thinking about our recent politics and social tone, I commented: “For a novel written 88 years ago, it’s surprisingly prescient and relevant.”
The novel impressed me so much I bought the series of essays Huxley published almost 30 years later, Brave New World Revisited (1959). So far, I’ve only read the first five (so many distractions these days), but the apparent prescience continues to astound and astonish me.
I qualify that with “apparent” because it’s actually as old as humanity.
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7 Comments | tags: Aldous Huxley, Brave New World | posted in Politics, Society
Whether it’s to meet for dinner, attend a lecture, or play baseball, one of the first questions is “where?” Everything that takes place, takes place some place (and some time, but that’s another question).
Where quantum mechanics takes place is a challenging ontological issue, but the way we compute it is another matter. The math takes place in a complex vector space known as Hilbert space (“complex” here refers to the complex numbers, although the traditional sense does also apply a little bit).
Mathematically, a quantum state is a vector in Hilbert space.
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9 Comments | tags: coordinate system, inner product, QM101, quantum mechanics, vector space, vectors | posted in Math, Physics
I thoroughly enjoyed the first John Scalzi book I read, Redshirts. I thought it was delightful and definitely my kind of book. I also very much enjoyed the second Scalzi book I read, The Android’s Dream. Because of that, I’ve been looking forward to reading his trilogy, The Interdependency.
This past week, courtesy of online library books, I finally did, and I do regret to report that I found the series rather underwhelming. I ended up skimming through the last half of the last book just to find out how it all turned out.
I think the biggest issue for me was lack of action. There was a ton of narration, explanation, internal monologue, and talking, but there wasn’t much action.
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8 Comments | tags: John Scalzi, science fiction, science fiction books, SF Books | posted in Books, Sci-Fi Saturday
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