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I’ve read several novels lately with characters engaging in the sort of OPSEC that you need to do nowadays if you’re undertaking activities the federal government would consider nefarious—beginning with not carrying your smartphone around everywhere you go.

Of course you wouldn’t want to leave your phone behind only when you were doing something nefarious. To do that would be like announcing “Nefarious activity beginning now!” Instead, you need to start playing at going off the grid now for no particular reason, so that when you go off the grid for reals it won’t be so obvious what’s going on.

The necessary OPSEC is hard to get right. One of the novels I mentioned, (The God’s Eye View by Barry Eisler) has as a significant plot element how easy it is to screw up. In the novel a character’s actions are discovered due to her turning on her burner phone at a point close in time and place to where she turned off her regular phone.

As a slightly more sophisticated example, the NSA is known to have a system for “fingerprinting” burner phones, which works by spotting when one cluster of related burner phones all go dark at the same time, and then a similar-sized cluster, with a similar pattern of connectedness, starts up right after.

Just spending some time out and about without a cell phone is probably a good start. Establish a pattern of turning your phone off (or leaving it at home) for a couple of hours every day. It might make sense to establish a regular pattern of doing so, but one can easily go awry trying to set up false patterns. Perhaps it would make more sense to have no particular pattern of when the phone might be on or off.

Purely whimsically, I’m inclined to do this.

In fact, I’m going to have to: Next month I’m on jury duty for a week and cell phones aren’t allowed in the courthouse. I’m sure most people leave their phones in the car, so they can return to them over their lunch break, or at least get back to it as soon as they’re released at the end of the day. But the courthouse is in downtown Urbana, a place that’s easy to get to by bus, so I’m disinclined to drive there. But without a car in which to leave my phone, I’ll probably have to leave it at home.

That might mean 8 hours or more being out and about without my phone, which seems like a great opportunity to establish a pattern of my phone being left home while I do something else—serve on jury duty next month, but who knows what the month after? Nothing nefarious, of course. I’d never do anything nefarious.

Even places where cell service is spotty, such as this spot on the trail in Kennekuk Cove County Park, having a smartphone is completely normalized for me. I expect to be able to just take a picture like this. (And the idea that I might instead bring a camera almost doesn’t fit in my brain any more.)

As an aside: I wrote a couple of articles about going off the grid back when I was writing for Wise Bread. One was a book review of a rather interesting book titled Off the Grid. The other was an article about the trade-offs in choosing to live “off the grid” in the broader sense—not just off the surveillance grid, or even the power, gas and water grids, but more broadly the globalized economy, industrial agriculture, consumerism, etc. I can’t remember what I called the post, but Wise Bread published it as Going Off the Grid Is a Lot Harder Than You Think.

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I went to a parkour workshop yesterday held at 25 O’Clock Brewing in Urbana—one small bit of the UnConference (a very Urbana thing).

I’ve been interested in parkour for years now. I have included various bits in my own training, and also gone to train with the campus parkour group (the same people who led this workshop) a few times. For various reasons (social timidity, physical timidity, lack of fitness) I haven’t managed to establish a regular practice of training with the campus group. But it doesn’t mean that I’m not interested, so I was glad to learn about this workshop, which seemed like a safe, easy way to get back into it—and was.

We were led in a warmup, followed by some quadrupedal movement: Bear crawls, aka foot-hand crawls, both frontwards and backwards, followed by a move I know by the name “traveling ape,” although there are probably other names for it.

After the QM we went for a very short run to a wonderful object that could perhaps be described as a free-standing wall of old railroad ties locked in a wire cage. It had a flat metal top which together with the cage made it great for practicing cat hangs: The cage provides enough of a toe hold that even people with limited grip strength can hold on long enough to get a good workout.

The next thing we worked on was shoulder rolls. I was particularly glad for this part because I used to be able to do shoulder rolls, but at some point in the last 35 years lost the mix. Starting from a kneeling position, though, I was able to recover my roll. In just 15 minutes of practice I was back up to doing rolls from a squat. From there I’m sure I can work up to rolls from a standing position pretty quickly.

(Actually, the main delay is that for some reason the rolls made me queasy. I don’t remember that from 35 years ago, but yesterday I got queasy after a few minutes rolling, and my stomach didn’t completely settle down for several hours.)

After rolls we did some vaults. We started with the safety vault, which I’d already learned (and have continued to practice, because it’s really handy for things like getting across downed trees while out hiking). Then we proceeded to some initial progressions for the kong vault. I’d always thought of the kong as the most advanced vault, but that’s when it’s used to traverse a gap beyond the thing you’re vaulting. It can also be used like the safety vault as a way to get on top of some object, and that’s what we learned yesterday. With a low-enough wall (waist-high, rather than chest-high), I can already get on top with a kong vault.

Shout-out to restorative exercise specialist Ashley Price who spotted that the parkour workshop was going on and suggested that I attend.

Today I’ve already included a bit of parkour in the day’s activities, adding a bit of QM to my afternoon walk, both foot-hand crawling and a bit of ground kong. (The latter is excellent practice for reminding myself that I need to keep my knees together, something that does not come naturally.)

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HRV (Heart Rate Variability) is one of the metrics that the Oura ring tracks. I’ve begun to learn a bit about it, and thought I’d share what I’ve learned so far, and then share a small personal observation.

Very briefly, HRV has to do with the variations in the timings between heart beats. If your heart rate is 60 beats per minute then about one second will pass from one heart beat to the next—but only about one second. In actual fact, sometimes it will be a few milliseconds more, and other times it will be a few milliseconds less. Those “more or less” amounts are your heart rate variability or HRV.

Most of what I know about the HRV comes from an interview on Human OS Radio podcast with Phyllis Stein, Director of the Heart Rate Variability Laboratory at the Washington University School of Medicine in St. Louis, called Introduction to Heart Rate Variability (HRV). It’s definitely worth a listen, if you do the podcast thing.

A lot of HRV is related to respiration. I noticed this when I got my first heart rate monitor thirty years ago: Every time I inhaled my heart rate speeded up, and every time I exhaled my heart rate slowed down. This effect is pronounced enough that the Oura ring can calculate your respiration rate just by watching your heart rate speed up and slow down with each breath.

HRV is widely used as an indicator of the balance between your parasympathetic and sympathetic nervous systems: If your parasympathetic nervous system is functioning well you’ll see quite a bit of variation. When it’s not functioning well—for example, when you’re persistently stressed—the amount of variation in your heart rate will decline.

Since I got my Oura ring, I’ve been tracking my HRV, looking to see if this or that bit of self-care practice will increase it, and I’ve noticed one thing that seems kind of interesting: Very often my HRV will be quite low in the first half of the night, and then be higher (and with higher variability in the variations) in the second half of the night. Here are three recent examples:

I speculate that this is related to the fact that I’m still digesting supper at bedtime, or perhaps that alcohol I’ve consumed is not fully metabolized yet. I’ve been hoping that life would produce a natural experiment to test those two theories, but so far haven’t gotten one. (That is, days when supper or cocktail hour were very early or had to be skipped have also been days when some other factor—such as illness, an unusual bedtime, or unusual stress—confounded things such that I couldn’t really draw any conclusion about the effect on my HRV.)

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At least since David Allen’s Getting Things Done it’s been widely advised that to-do lists be specific to “context”: You have a list of things to do at the office, a list of things to do when you’re at the phone, a list of things to do when you’re in the car, etc.

In the fascinating article Productivity for Precious Snowflakes, Tiago Forte suggests that these sorts of context are much less important than one’s internal context.

Trying to make this work with a to-do list is crazy:

It is not at all clear what must be done and in what order; in fact, it becomes ever more clear that most of the tasks we execute don’t make much of a difference, while a tiny percentage randomly and dramatically influence the course of our work and our lives. It makes sense to invest more and more resources in making that distinction, because the absolute fastest way to complete a task or reach an objective is to realize you don’t have to.

The article goes on at some length with tips for figuring out what state of mind is best for what tasks. And more to the point, figuring out what tasks are best suited to be completed given your current state of mind. And, even more to the point, how to break up your larger tasks into pieces that can be effectively worked on by you in different states of mind as you happen to find yourself in them. There’s also some suggestions on how to learn to enter states of mind that you’ve found to be useful.

Not a new article, but an interesting one.