I suppose I am not your typical blogger in one way: I don’t blog about news items that grab my attention, because I am rarely happy with my first-order immediate reaction to the news. It often takes me years before I consciously “get” why a piece of news grabbed my attention. For instance, I have [...]

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Imagine that there is a mystery closed curve about the origin. Allow two parallel lines to approach the origin from diametrically opposed directions, and have them stop where they first become tangent to the mystery curve. Suppose you do this from all pairs of directions from (0,π) to (π,0), and find that the lines stop [...]

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I have had this little picture-story in my mind for several months now. It is the sort of thing that gets less clear the more you say about it, so here it is, with no further explanation.

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The phrase creative destruction has resonated with me since I first heard it, and since then, it has been an organizing magnet in my mind for a variety of ideas. I was reminded of the concept again this weekend while reading William Duggan’s Strategic Intuition, (you’ll see a review shortly) which mentioned Joseph Schumpeter as [...]

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“What is thought?” is a question that is foundational by any reasonable measure. The best short answer I have found so far has been “thought is conceptual metaphor,” and it is one of the enduring regrets of my life that it took me so long to encounter this answer. An undergraduate friend (hi there Max!) [...]

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The idea of stability is a central organizing concept in mathematics and control theory. Lately I have been pondering a more basic idea: equilibrium, which economists prefer to work with. Looking at some fallen trees this weekend, a point I had appreciated in the abstract hit me in a very tangible form: both stability [...]

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Would you say this object — I present two views — is animal, vegetable or mineral?

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I kicked off my writing on consciousness with a post on my overall framing of the problem. Now, by way of warm-up, let’s explore a problem that is confusing and interesting, but not completely mysterious, which I call the problem of indexical extent. The indexical problem is this: assume somebody explains consciousness satisfactorily, and even [...]

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Everybody who gets up on a soapbox at some point needs to make a ritual declaration by finishing the sentence: “The twenty-first century will be about ________.” We’ve heard pronouncements from various gurus that the blank should be filled with 1) China, 2) Chindia, 3) BRIC nations 4) Global warming, 5) Terror, 6) Right-brained [...]

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Suppose a job candidate walks into your office and hands you a resume. It proclaims, “strategic, systems thinker.” You wince, and almost throw her out right there, but since other parts of her resume look promising, you decide to give her a chance and proceed with the interview. Now ask yourself, how would you actually [...]

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