I’ll end these posts about the configuration space metaphor where I began: in a big cube. I started the series in the Neapolitan room, a three-dimensional space where we could indicate our feelings about vanilla, chocolate, and strawberry ice cream with a single marker. From there we visited the Baskin-Robbins 31 Flavors space (which is tasty but beyond our ability to visualize).
Then I focused on spaces with only two-dimensions (which are easy to visualize). These are probably the best use of the metaphor; they turn a tug-of-war into a sensible place to stand. They also strongly differentiate “don’t care” from “care about both.”
Now let’s see what we can do with three dimensions…
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1 Comment | tags: 3D, 3D space, color cube, configuration space, parameter space, primary colors, secondary colors | posted in Basics
You may remember my pal, Bentley, the APBT:

All tuckered out after a three-mile walk!
Last week the little dickens ate three-quarters of a cotton dish towel, which freaked her mom (and me) out.
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13 Comments | tags: Bentley, dogs | posted in Life
Recently I wrote that I was reading Existence (David Brin, 2012), a novel I found so striking I had to post about it before I was even halfway through. Now I’ve finished it, and I still think it’s one of the more striking books I’ve read recently. (Although a little blush came off the rose in the last acts.)
Central to the story is the Fermi Paradox, with a focus on all the pitfalls an intelligent species faces. The tag line of the book, a quote attributed to Joseph Miller, is, “Those who ignore the mistakes of the future are bound to make them.” Brin’s tale suggests that it’s well neigh impossible for an intelligent species to survive their own intelligence.
I’ll divide this post into three parts: Mild spoilers; Serious spoilers; and Giving-away-the-ending spoilers. I’ll warn you before each part so you can stop reading if you choose.
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13 Comments | tags: David Brin, Fermi Paradox, Great Filter, social change | posted in Books, Sci-Fi Saturday
My blog has such low engagement that it’s hard to tell, but I get the sense the last three posts about configuration space were only slightly more interesting than my baseball posts (which, apparently, are one of the least interesting things I do here (tough; I love baseball; gotta talk about it sometimes)).
So I’m thinking: fair enough; rather than go on about it at length, wrap it up. It’ll be enough to use as a reference when I mention configuration space in the future. (There have been blog posts where I couldn’t use the metaphor due to not having a decent reference for it. Now the idea is out there for use.)
And, at the least, I should record where the whole idea started.
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68 Comments | tags: 2D, 2D space, configuration space, orthogonality, parameter space | posted in Basics
It’s Science Fiction Saturday, so today I want to consider a fairly common question a fan might encounter: “Science Fiction or Fantasy?” The implication is that one tends to exclude the other. In these polarized times, it can amount to a declaration of your tribe.
One problem is there’s a spectrum from hard SF to pure fantasy with everything in between. But let’s take them as two legitimate poles and consider the question in terms of configuration space. (See posts #1 and #2 if you need to catch up.)
I think you’ll see that using a space give us a new take on the question.
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13 Comments | tags: 2D, 2D space, fantasy, multiple dimensions, parameter space, phase space, science fiction | posted in Basics, Sci-Fi Saturday
Last time we considered a cube-shaped room where we could indicate our opinion about Neapolitan ice cream with a single marker. That worked well because we were dealing with three flavors and the room has three dimensions: east-west, north-south, up-down.
Later I’ll explore other examples of a 3D “room” but while we’re talking ice cream, I want to give you an idea where this goes, I want to jump ahead for a moment and consider good old Baskin-Robbins, who famously featured “31 flavors!”
So now the question is, can we set a marker for all 31 flavors?
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7 Comments | tags: 3D space, configuration space, ice cream, multiple dimensions, Neapolitan ice cream, parameter space, phase space, vector space | posted in Basics, Science
Have you ever had (or at least seen) Neapolitan ice cream? It’s the kind with chocolate, vanilla, and strawberry, usually as separate layers in one package. As a kid, I didn’t care for the strawberry. I loved the chocolate and was fine with the vanilla (wouldn’t usually choose it, but don’t disdain it).
That’s just my take on it: one flavor liked, one not liked, and one that’s just okay. Someone else might have the same pattern with different flavors. Or love them all equally or want just the strawberry. Some might not like ice cream at all — any combination is possible.
What if we wanted to describe our feeling about Neapolitan as a whole?
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18 Comments | tags: 3D space, configuration space, ice cream, multiple dimensions, Neapolitan ice cream, parameter space, phase space, vector space | posted in Basics, Science
I’m not quite halfway through Existence, by David Brin, but I’m enjoying it so much I have to start talking about it now. For one thing, it’s such a change from the Last Chronicles, which was a hard slog with a disappointing ending. (Still worth the journey, though.)
The novel is a standalone, not part of his Uplift Universe, but it apparently can be viewed as a kind of prequel to that reality. However: so far no alien contact, humanity is still on Earth, and computers are not conscious (but AI is very, very good). The year, as far as I can tell, seems to be in the 2040s or 2050s.
At heart, the novel’s theme is the Fermi Paradox; it examines many of the potential Great Filters that might end an intelligent species. But now an alien artifact has been found, a kind of message in a bottle that appears to contain a crowd of alien minds…
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18 Comments | tags: David Brin, Fermi Paradox, Great Filter, Isaac Asimov, Kiln People, Startide Rising, Sundiver | posted in Books, Sci-Fi Saturday, Society

So very, very disappointing.
The headlines of articles I have no desire or intent to read proclaim that Lori Loughlin believes she did what any mother would have done for her child. I’m not all agog over actors, and barely recognized her name, but my impression of her persona involved a lot more of a moral center.
Recently, regarding our cultural calculus, I wrote, “Our greatest peril lies in disconnecting ourselves from truth,” because “Life is hard enough these days without turning truth into a commodity.” Our social equation depends on us representing ourselves honestly, on not cheating.
Civilization demands that we play the game of life fairly.
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2 Comments | tags: cheaters, Felicity Huffman, honesty, Immanuel Kant, liars, Lori Loughlin, truth | posted in Society
We interrupt this regularly scheduled blog post for an Important Weather Update!
Afterwards, please stay tuned for News from Space!
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16 Comments | tags: black hole, M87, snow, snow storm, winter, winter storm | posted in Life