In a private forum, Rafal Smigrodzki wrote:

I remember that one of my early epiphanies on the road to libertarianism came when I was reading about chaotic, scale-independent oscillations in heartbeat frequency. One might naively think that the healthier the heart, the more regular its beat – but actually the opposite is true. A healthy heart chaotically wanders around a setpoint, as a result of interactions of millions of locally coupled oscillators, the spontaneously spiking cells in the AV node. But as you press your heart harder and harder, as in heart failure, the chaotic rhythms are becoming simpler, until one last AV frequency remains, usually quite high, tachycardic, produced by an ever smaller set of cells. The next step may be fibrillation, or asystole, and death.

So, in our hearts health comes from chaos, the absence of a rhythm for every cell to dance by. Networked interactions can be made much more robust using multiple, locally interacting oscillators, rather than relying on a single one. The analogies to the society, the share of activities controlled by a single global decision-maker versus multiple local ones are in my mind crystal clear.

Whenever I get settled in my big chair, Pillow (the junior cat) is all over me; but when I’m in bed he almost never comes within reach. So I was surprised when, on waking in the night, I found him sitting on the bed, in the spot most convenient to my hand, waiting to be tickled.

Having spent the previous night in hospital (where many tests found no cause for my chest pain), I thought of Oscar.

I reloaded MacOS, restored my home directory from backup, and was surprised to learn that I have 3e5 files. Most of the bulk is music, but that’s only 7e3 files. Is there a tool analogous to du that gives the number of files in each directory, rather than their aggregate size? —Later: When Apple Mail imported my Thunderbird archives, it made huge numbers of files, but I don’t know yet whether they’re enough to answer the question.

In other news, the medical jargon specimen of the week:

Infant is status post a negative rule out sepsis workup . . .

I guess that means sepsis was ruled out, rather than that it was not ruled out. The weird thing is that “rule out sepsis” is often listed as a diagnosis rather than a procedure.

Roderick Long (1993): How Government Solved the Health Care Crisis: Medical Insurance that Worked – Until Government “Fixed” It

Hey, I’m a fictional character! Dr. Anton Sherwood, “an older man in a tweed suit”, appears in The Secret Hour by Scott Westerfeld, a novel about which I know nothing else. (I searched for my name, as one sometimes does, this time looking for ones that aren’t me.)

The latest thing to puzzle me in med-speak is “benign yet appropriate”. When would it be inappropriate to appear healthy?

There apparently exists a surgical tool called a synovial elevator. Makes me think of a bioengineered building, with beams of bone.

Friendly societies: ancient free-market social security

Meet the Mind Readers: brain implants to control prostheses.

In previous studies, Nicolelis’s team showed that when monkeys had their brains hooked up to robotic arms, they assimilated the arm, effectively making it their own. “Their brains actually incorporated the robotic arm by dedicating neuronal space to it. We want to see if the same thing happens in humans,” he adds.

Can’t imagine why it wouldn’t. What I wanna know is whether – and how readily – a brain can embrace an interface that has no familiar analogue.

A woman volunteered to donate an organ to her mother, but mom’s pee tested positive for marijuana, so no go. I could understand disqualifying the disobedient from receiving an organ from the limited pool of dead strangers, but how does this make sense even by drug war logic?