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January 2, 2023. 
The new year is a good time for self-improvement, but I don't wait for it. The main thing I've been working on lately is walking. I mentioned in a Reddit thread that my knees are in better shape at age 55 than they were at age 25, because back then I would walk around setting my feet down clumsily. Someone replied: Are you saying it takes 50 years to learn to walk?
No, but it could take hundreds of hours to learn to walk correctly, and not in a million years would my body have figured it out on its own. I'm a bad athlete, but even professional athletes put a lot of time into mechanics. The difference is, they have to focus on mechanics to perform at the highest level; I have to do it to perform with basic competence.
I've always noticed that my shoes develop a worn patch in the center of the right heel, as if I'm setting it down with a slight twist. Only last month did I bother to spend an entire minute actually watching myself walk, and catch that slight twist in action. Now, whenever I go heel-toe, I keep my head down and focus on my right leg, gradually building the habit of setting it down cleanly.
Mostly I walk on the balls of my feet, which is really hard to do without looking like a dweeb. By watching myself in windows along the street, I've discovered that the trick is to put more whip into my steps.
At the same time, I'm noticing exactly how my knees bend, and trying different ways of swinging my hips and arms. Leigh Ann says I either swing my arms too stiffly, or too loosely. She was the fastest runner in her elementary school, so she gives me unhelpful advice like "just feel it." But she can tell at a glance if I'm doing it right or wrong, and she's been helping me practice the George Jefferson walk, which is about as far as you can get from my habitual gait.
January 4. Another trick I use to walk better, is to pretend that my body is an advanced video game avatar that I'm trying out. I'm not sure why this works. My best guess is, it creates a context for observing the body, that offers more novelty and meaning than the one provided by our culture: that the body is a cumbersome meat sack that will give us pain if we don't give it enough attention.
More generally, why are games fun? Why is it that real life tasks, like prepping cilantro or flossing, are tedious chores, while game tasks can be just as fiddly and repetitive and yet we enjoy them? I think it's because games create a tighter context for tasks to feel rewarding.
This is a problem for complex society. As our actions are connected to more things, it becomes harder to grasp the value of whatever we're doing. Valuable actions like sorting trash can feel painful and degrading, while harmful actions can feel fun.
"Gamification" is a word mostly used by people playing a larger game of leveraging power into more power. Let's make it fun for the peasants to give us their data! But in a system that's not based on power over others (coming in about a thousand years) I don't see any reason to hold back from making life more game-like.
January 11. I've written before about obesity, and how it isn't correlated with any category of food. Whether you blame sugar, fat, or carbs, there have been populations who ate more of it than we do, and didn't have a problem. The new thing we have is processed food, and something about that processing, or some contaminant in our environment, is throwing off our normally well-tuned sense of how much to eat.
This explains why dieters count calories. They have to use their heads because their bodies are no longer reliable. And whatever is causing it, it's finally caught up with me. This year, without changing anything about my eating habits, and actually walking more, my weight has been creeping up.
When I hit 170 (BMI 24) I said that's enough, I have to go on a diet. But I figure, if my body signaling is off, then I don't have to count calories -- I just have to correct for the error.
Surely it's too simple to say that hunger is what losing weight feels like. But the dieting industry is always trying to cheat that rule, to find a way to lose weight without feeling hungry, and they've had limited success. My strategy is to try to feel hungry. So far it's working, but I'm disappointed at how hungry I had to feel to just drop a few pounds.
But I'm wondering, if a substance can bend a sense one way, another substance can bend it the other way. Suppose we invent a weight loss drug that makes us feel like we're eating too many calories, when really we're not eating enough. "After ruling the earth for a mere ten thousand years, humans died of a mysterious wasting sickess."
January 13. Lots of feedback on weight loss. Matt recommends intermittent fasting, where you start eating later in the day and stop eating sooner. I'm trying this, but rather than draw a line, and say "No eating before or after this time," I'm applying force: Let's see how late I can push breakfast, and how early I can stop evening snacking.
Erik says, "One thing to try is to over-feed yourself once per week, to give your body the signal that there's no lack of food in your environment."
Dan thinks obesity is related to nutrient depleted soils, because now we have to eat more calories to get enough other nutrients. This is supported by the observation that some people who lose weight end up being less healthy overall.
Thaddeus is finishing a book on the theory that weight gain is related to artificial light, so it helps to wear blue blocking lenses and not eat after dark. This is his YouTube channel.
And James mentions that the drug I predicted already exists. It's called Ozempic and it's in high demand, with unknown "side" effects that are now being tested in the wild. Also, as with many other weight loss strategies, if you stop, you tend to gain the weight back.