This sort of thing was a fantasy of mine, back in the 1980s. I could see things getting worse in the US, and the idea that a foreign passport and foreign residency could provide an escape if things got too bad was pretty appealing.

Nowadays not so much. It’s not that things have gotten better in the US; it’s that things have gotten worse other places at least as quickly. More to the point, things getting worse in the US seems to make things worse other places, so the conditions that make the idea appealing are the same conditions that make it pointless.

One book that substantially influenced my thinking in this area is Emergency: This book will save your life by Neil Strauss. I recommend it highly. In entertaining and informative prose, he documents his transformation from just the sort of kook I was in the 1980s into somebody with a much more practical perspective.

Still, an EU passport might have its upsides. Anybody got a spare quarter million euros and an interest in learning Greek? (If money is no object, a half million euros will let you buy in to Ireland, and I expect learning Gaelic is optional.)

Graphic from Citizenship for Sale on the International Monetary Fund’s IMFDirect blog.

 

For about a generation now the police in the U.S. have followed a general practice of escalating any confrontation, with the intention of escalating faster than the opposition can respond. This has saved lives, but I think we’ve reached the point where the negative consequences of this practice are becoming highly visible in a way that’s going to force changes.

The police still patrol in ones and twos the way they always did, but starting in maybe the 1970s they quit responding to confrontations that way. At the first sign of trouble, they’d call for backup. A confrontation with one person would be met by four or six officers. A confrontation with several people would be met by a dozen officers. A confrontation with an armed individual would be met by countless officers with rifles and shotguns.

In many cases this has no doubt saved lives. Certainly it has saved the lives of police officers, but it has probably saved the lives of suspects who were persuaded to surrender in the face of overwhelming force.

The problem with this tactic is that it’s obviously inappropriate in many circumstances. It’s basically a military tactic—hit with overwhelming force—and the general public views it that way and reacts with scorn (when used against people who are obviously harmless) together with either fear (when used against people like them) or shame (when they see it used in their name).

And that last, I think, is the change that’s going to make a difference: People feel shame when they see a rapid escalation to a disproportionate use of force done in their name, and they’re seeing it more in this age of smart phones.

So far when rapid escalation leads to uses of force that seem clearly unnecessary or disproportionate, and yet police officers face few or no consequences, people have been surprised. They shouldn’t be. The whole point is that these practices are codified in law and in the procedures the police departments follow. When the police rapidly escalate a confrontation they aren’t doing anything illegal, and they aren’t violating police department policies.

And those things—laws and procedures—are what need to change. Fortunately, in a democracy, when the public decides something ought to change there is a real chance of change forthcoming.

So, what do we do instead? We can go back to what policing ought to be—attempting to deescalate confrontations, reserving escalation for cases where public safety really requires it.

There are many instances where violence is a possible result—where somebody is angry or drunk or stoned or stupid or having a psychotic break or just a really bad day. In many instances violence could be avoided with deescalation.

For a very long time—as long as there has been government, right up until recent decades—escalation had to be slow, because the communication options and the manpower available didn’t allow for rapid escalation. There tended to be one representative of the government—a sheriff or tax collector—who kept order largely through moral suasion, together with having some call on overwhelming force (in the form of a posse or a platoon of redcoats or something). Unless a situation was such that calling in the marines would be appropriate, it pretty much had to be handled through deescalation rather than escalation.

Many of the lives saved by rapid escalation are police officers’ lives. Many of the people who will be saved through deescalation are not especially sympathetic—the petty criminal, the drunk, the mental patient, the burly man who is developmentally disabled. But others are, and we’re beginning to see the losses as part of a pattern, rather than as a series of unfortunate incidents.

When a guy has a stroke at the wheel of his car, manages to stop it, but is unable to respond to a police officer’s instructions (“Show me your hands! License and registration! Get out of the vehicle!”), what is the police officer’s appropriate response? Knowing the situation, obviously calling an ambulance. But under current polices there’s far too much chance that the guy will be dragged out of his car, roughed up, and dumped in the drunk tank until brain damage from the stroke is irreversible. Or, if he doesn’t have white skin, very possibly shot instead.

Now that we’re seeing people die at the hands of the police, and now that we’re hearing the testimony that these killings are legal and are in accordance with police department policy, we may finally see some changes in the laws and the policies.

Because that, rather than feelings of anger or shame, is what will make the difference.

A shift to deescalation will probably mean that people will die who might have lived. But people are dying now. People will die either way. A shift to deescalation may mean fewer people will die. It will almost certainly mean that fewer people will be shamefully killed in my name.

You know this, right? Age-related diseases—at least, those of middle age—mostly aren’t. Rather, they’re lifestyle diseases that seem age-related because it takes years or decades for the harm done by the lifestyle to start showing up as symptoms.

I’m prompted to write this by something Charles Stross wrote over a year ago, where he talks about the symptoms of aging. I almost didn’t link to that post, because he’s really talking about something else—his post is about the political effects of reasonably foreseeable improvements in medicine—but along the way, he describes his current circumstance:

. . . chronic low-grade pain of the middle-aged body: joints that creak and pop, muscles that need an extra stretch, sore feet.

And goes on to compare it to his hypothetical world with science-fictional medicine:

Unlike today’s senior citizens, you don’t ache whenever you get out of bed, you’re physically fit, you don’t have cancer or heart disease or diabetes or Alzheimer’s, you aren’t deaf or blind or suffering from anosmia or peripheral neuropathy or other sensory impairments, and you’re physically able to enjoy your sex life.

Of course there are age-related diseases—Alzheimer’s and anosmia probably are. But especially the ones in the first quote—the age-related difficulties of the middle-aged body—aren’t age-related at all. To imagine that they are is to make a category mistake—and a serious one, because the error makes it much more difficult to recover your health.

I’ve hesitated to write this post, because I realize that I’m speaking from a position of privilege—I’m healthy. This is partially a matter of luck, partially a matter of good genes, partially a matter of a lifetime history of good health care, access to adequate nutrition, and so on.

Even so, I’ve got real first-hand experience with exactly the list of middle-aged body problems that Stross lists.

Eight or ten years ago, I was feeling old. Tasks that required strength were more daunting than they had been—especially ones, such as carrying things up or down steps, that added additional weight to my already excessive body weight. My balance wasn’t as good, making slippery tubs and icy sidewalks seem like serious threats. My plantar fasciitis was kept at bay only by being scrupulous about wearing supportive shoes and by limiting the amount of standing I did. I could still get down on the floor and get up again, but it was hard enough that I didn’t do it when I didn’t have to. I had trouble getting a good night’s sleep, because my back would ache when I lay still too long, and when I did sleep through the night I’d need considerable stretching before I could move normally the next morning.

I viewed all this as normal aging. Partially, I think that was because I was actually in pretty good shape. I could walk 5 or 6 miles. I routinely bicycled to work when the weather was nice. I went to the fitness center two or three times a week to use the weight machines and do some stretching. Despite all that, my physical capabilities were declining, and I didn’t see anything I could do about it, except perhaps spend even more time exercising, which didn’t seem practical for someone with a day job.

It wasn’t true, though. Over the past six or seven years, I have felt better each year. It is not a strain to carry things of ordinary weight, even going up and down stairs. My static balance is excellent—I no longer fear slippery tubs, although I do still try to be careful on ice. My feet don’t hurt when I stand a lot, even when I’m barefoot. I make a point of sitting on the floor, just to add some variety to the day. I sleep well, and I wake up able to move.

What did I do? Nothing extraordinary.

Starting to do tai chi was probably the key shift, because it changed so many things at once about my movement practice. Somewhere along the line I ran across parkour, and then even before I had done more than play with that I discovered natural movement as a thing—and that was what gave me a framework for thinking about movement the same way I’d come to think about food.

Trying to figure out the best diet is a waste of time. It’s computationally infeasible, and anyway unnecessary—just eat a wide variety of foods (and limit your consumption of industrially produced food-like substances) and your body takes care of the rest. (See Michael Pollan’s In Defense of Food for details.)

Similarly, trying to figure out the best exercise regime is a waste of time. You are far better off to get a wide variety of movement (and limit the time spent doing things like sitting in chairs and wearing shoes). Once again, your body will take care of the rest.

What struck me—what prompted me to write this post—was that Stross’s description of what his science-fictional medicine feels like is what I’ve felt like. It’s not exactly aging backwards, but it is a recovery of a feeling of ease and comfort that had slipped away under cover of “normal” aging.

My life feels kind of like a science fiction story, with the science-fictional medicine being just recovering normal patterns of movement.

It makes me want to advocate these lifestyle changes, perhaps more strongly than is advisable. As I say, I recognize that I’m writing from a position of health that isn’t available to just everyone. I can’t say that if you’ll just start walking and running and bicycling and lifting weights and doing taiji and experimenting with parkour and natural movement, you will reverse the aging process and feel young again. There are kinds of impairments that cannot be completely recovered from, and perhaps some that cannot even be improved.

And yet, I do advocate these lifestyle changes. Move better. Move more. Eat food. I bet you’ll feel better—especially if you’re starting to suffer from the symptoms of “normal” aging.

I have long opposed most sorts of gun control. The main reason is the same reason I oppose drug prohibition: There is no way to enforce a ban on a thing, except through police-state tactics (and I don’t like living in a police state).

How do you ban a thing? You can pass a law against possession, but that law is unenforceable except by house-to-house searches. You can’t even enforce a ban on carrying concealed weapons except by stopping and frisking everyone out on the street. (Please don’t suggest only stopping and frisking “suspicious” people, unless you have first-hand experience with looking like one.) Since there’s no victim to report the crime (“I was illegally possessed at!”), you only find the criminals by chance, unless you’re willing to go full war-on-drugs with undercover agents, coerced informants, wiretaps, search warrants executed by SWAT teams and so on.

You could impose a high penalty on possession of a gun, and then only enforce the law when a gun came to the attention of the police. That would probably get the guns off the street—a gun hidden under the floorboards isn’t much of a threat—except of course for the “only criminals will have guns” issue: High penalties don’t much deter people who are already committing crimes with high penalties. Plus, it leads to all the classic slippery-slope arguments. Selective enforcement (searches used to harass disfavored people) and unfair results (unlucky people spending 20 years in prison for a gun they didn’t know was in the boxes of grandfather’s personal effects) being just two of the downsides.

Besides, guns are useful tools. If we have a ban that applies as well to the police and the military, then we’ve denied them tools that they may need to do their jobs. But if the ban doesn’t apply to them, then we have to draw the line in a specific place—or a series of specific places. If police qualify, how about campus police? Transit police? Park rangers? Do bodyguards qualify? How about armored-truck guards? Stalking victims? The result is once again selective enforcement and unfair results, this time with a side order of political shenanigans.  Some people who need the tool will be denied it. Other people who thought they were allowed the tool will have their lives destroyed when a court rules that they were not.

Much more sound than laws against things is laws against behavior. It’s illegal everywhere to shoot someone or to threaten someone with a gun or even to discharge a gun in a populated area. These are the sorts of laws that gun-control opponents always point to as the right way to control guns. But they self-evidently don’t work. Even if you discount suicides and accidents, there are 12,000 homicides a year in the United States—with about 90% committed with a firearm.

So, what other behaviors could we regulate? There is often talk of regulating the sale of firearms. Being in the business of selling firearms is already extensively regulated, but currently it’s legal to sell (or give away) a firearm without being in the business—sales between friends and gifts between relatives are legal, and don’t require that you be a licensed firearms dealer. That could be changed. You could make selling firearms be like selling prescription drugs, which only a licensed pharmacist can do. Many currently legal, perfectly ordinary behaviors would be illegal, or else the laws would have to be very carefully drafted. Could a father buy his son his first .22 rifle? Could an Olympic-champion riflewoman let her aspiring-sharpshooter daughter take mom’s match-grade pistol to the shooting range to practice with? If a down-on-his luck man pawned a family heirloom firearm, would he be committing a crime if the pawn shop owner’s firearms license were not in order? What if the pawn shop clerk were a felon?

Registering guns is often proposed, although I don’t see how doing so would reduce violence. Further, I think gun-owner fears of gun registries being useful primarily as a tool for eventual confiscation is well-founded: What other use would a registry have? The parallel is less with registering cars (which are big and operate in public where people can see them) and more with registering typewriters (which are small and are generally used in private).

Illinois has long had a registry of “allowed gun buyers,” which is somewhat less pernicious than a list of guns: It would still provide a list of places to search, if things trended even further toward a police state, but it would do so without providing what amounts to a master of list of guns to be seized. In fact, I would fully support such a scheme, if it were automatic: Every adult who has not been convicted of a felony or violent misdemeanor, nor adjudicated as dangerous or incompetent in some other fashion, should be on the list of those allowed to buy guns. The government could automatically strike people from the list upon conviction or commitment to a mental institution (with an appropriate appeals process to correct errors). Or people could file a simple form to ask to be taken off the list, if they had some personal objection. It’s basically the instant background check from the opposite direction.

I will say this, though—gun control advocates are finally on the right track, in attempting to mobilize public opinion. For the past thirty years, members of a small, mostly liberal elite have been trying to use their influence over government officials to pass gun control. But with public opinion so divided, legislative sausage-making has produced laws that are pointless and ineffective, full of easily ridiculed loopholes, but still with traps for the unwary gun-owner to commit a technical violation that leads to harsh sentences, without reducing the number of guns or making them less dangerous. (I am thinking in particular of the so-called assault rifle ban that ended up merely banning a handful of cosmetic details.)

And yet, I am nearly brought around. I am ready to support gun control legislation, if something can be found that would actually reduce violence (or at least its severity), doesn’t require police-state tactics to enforce, and doesn’t send people to prison simply because their papers are not in order.

That last is non-negotiable for me, an attitude puts closer than I’d like to be to unsavory company on other issues, such as immigration, where I agree with many Republicans that I think we should control our borders better. It’s because the other tactics of keeping our population density low are ineffective, unless we empower the police to check people’s papers. If we want the higher standard of living that comes from living well below carrying capacity—and I do—we can’t let just everybody live here. But having a category of “illegal” people forces immigrants to live outside the rules that promote the health, safety and prosperity of everybody, for fear of deportation. That risks the health, safety, and prosperity of all of us.

I’m no happier with letting police demand my firearm paperwork, and send me to prison if it’s not in order, than I am with letting police demand my citizenship papers against similar consequences.

I also think playing with guns is fun, and would be sad if they were banned. But I would give up playing with guns, if I thought it would prevent a large fraction of 11,000 murders a year. I don’t see a clear path from here to there, but I have joined the mass of people trying to find one.

Time zones are an anachronism from the days of railroads and pocket watches. They should be abolished. Instead of time zones, we should all use local solar time.

From the dawn of man everyone always used local solar time. We kept right on using it even after clocks became common. Time zones were created because it was too computationally complex to maintain train schedules when each town the train passed through was on local solar time. (In the days of stage coaches the inherent schedule variability produced by using horses to travel over unimproved roads was so large as to make the variations in local solar time insignificant.)

Computational complexity is no longer an issue. Nowadays everyone walks around with a supercomputer in his or her pocket. Those very same supercomputers also already have the one other thing needed to make local solar time practical: GPS positioning. (Because knowing the local solar time requires knowing where you are.)

Shifting to local solar time would be almost unnoticeable for most people—they’d just carry on checking their phone for the time the way they do now.

The only practical change would be that any mention of a particular time would have to include the location—which people already do informally anyway. If you schedule a meeting for 10:00 AM in conference room B, everybody would know that you mean 10:00 AM local solar time. If you’re scheduling a teleconference that some people will attend remotely, you’re already providing the time zone—and most often you’re providing it by reference to the local city (Chicago time, Bangalore time), which is exactly what you’re going to need for local solar time.

As long as the time of an event includes a location, your phone will be able to calculate the time at your current location (or at any other location you might care about).

Some people that I’ve described this system to object that two people on opposite sides of town would always be off-schedule, and always be having to go through gyrations to do ordinary stuff like arranging lunch plans. “Are we meeting at 11:45 at the restaurant, or 11:45 at my office?” This will simply not be an issue.

Social convention will quickly make the matter clear. When you say “I’ll pick you up at 11:45 at your office, and then we’ll meet everyone else at 12:00 at the restaurant,” everyone will assume the first time is local solar time at the office and the second time is local solar time at the restaurant. And in any case, the difference is insignificant. Local solar time changes by just a few seconds for each mile you move east or west, so even in a vast metropolitan area like Los Angeles, you’re talking about a difference of perhaps three minutes from one side to the other.

Giving you an alert 5 or 10 minutes ahead of a meeting that will be happening some miles to your east or west will be easy enough for your pocket supercomputer to handle. Certainly it’s less complicated than adjusting the alert time based on travel time from your current location, which many calendar systems are already beginning to handle. Adjusting for both at the same time is a simple matter of addition.

As a bonus, switching to local solar time has a reasonable shot at ending the perversion that “daylight saving” time has always been. When you live in a time zone whose borders are already arbitrary, it seems only a little more arbitrary to offset the clocks by yet another hour. Once we’re on local solar time—where local noon is when the sun is at its peak—it will seem preposterous to call that time 1:00 PM.

Abolish time zones! Return to local solar time!

People are making a big deal right now about how it’s obviously stupid that “suspected” terrorists can buy guns, but can’t get on planes. But nobody seems to be pointing out how it’s terribly unamerican that there’s even a category of “suspected” terrorists.

Until 15 years ago, you were presumed innocent until you were convicted of a crime. Yes, there was a category of “indicted” that was kind of in-between—but there was a clear legal process for how you got there, and a clear path to resolving the in-between state.

I really object to the idea that someone who has been convicted of no crime can be put into a category that denies them any of their constitutional rights. The gun nuts are putting a special premium on the right to be armed, but what about the right to travel?

The government, in the few court cases that have had at least some proceedings so far, has put a lot of weight on the idea that you don’t have to be able to fly to exercise your right to travel. You can still walk, after all. If you’re overseas you can buy a yacht and sail to the U.S, and the lawyers for the government seem to think that resolves the right-to-travel issue.

The fact that the process for getting into this state of “not convicted of a crime but still lack the rights of a normal person” is opaque and uncontestable is bad, but really doesn’t bother me as much as the state existing at all.

I am slowly coming around on the gun-control issue, but I wouldn’t mind preserving the status quo just for a bit, as a way to focus the mind on the broader issue: We used to have constitutional rights, and nowadays the most basic of them—being deprived of liberty without due process—has been constantly violated for fourteen years.

I’d seen it right along, and plenty of other people have commented on it before me, but I don’t think it really sunk in until just this past week, with all the hand-wringing over Syrian refugees:

Republicans are a bunch of cowards.

I’ve never seen so much fear as has been on display the past week from the Republicans (and, I must admit, way too many Democrats as well). And over what? A bunch of people—largely educated and middle class—who have been forced to flee their homes.

Seriously, the Republicans are straight up afraid of widows and orphans. What’s up with that?

I mean, I totally understand why the Syrians are afraid. They have soldiers and militias fighting house-to-house in their neighborhoods, blasting them with artillery, even using chemical weapons. Not to mention, they have U.S., French, and Russian air forces dropping bombs on those same militias, in the same neighborhoods.

But the Republicans? What are they afraid of? They’re afraid that some “terrorist” will “slip in” amongst the masses of refugees and commit “acts of terror” in the United States.

Well, these hypothetical refugee-terrorists (of which we’ve seen exactly zero so far) will have to get at the back of a pretty long line, behind the non-hypothetical white-supremacist, right-wing, and anti-government militias (not to mention depressed loner high-school boys) who have been committing mass murders in the U.S. in numbers well in excess of those committed by foreign terrorists.

Perhaps worst of all, most of the Republican rhetoric isn’t even aimed at affecting government policy; it’s aimed at preemptively setting up other people to take the blame. “We said you had to give ‘100% assurance’ that they wouldn’t be terrorists before you could let them in, so if even one of them commits a terrorist act it’s all on you!” (They know perfectly well that ‘100% assurance’ is impossible, which is why they demand it. It makes me want to point out that in the U.S. we convict people of capital crimes and execute them, and all we require is assurance “beyond a reasonable doubt.” I expect pointing that out makes me a rose-colored glasses wearing liberal who’s endangering our country.)

Fortunately, some people are man enough not to quake in their boots at the idea of some ordinary families fleeing terror and ending up here, and man enough not to be terrorized at the idea that they might have to take the blame if an evildoer does slip in. I’m thinking of President Obama here, rather too few Democrats in Congress, most of my liberal friends, and (oddly, because I don’t think of myself as especially brave) me.

I got email today from one of my senators, with the text of a truly appalling letter to president Obama from the senator and eleven of his colleagues.

The letter (here’s his press release on it) calls on the president to ensure that “no refugee related to the Syrian crisis is admitted to the United States unless the U.S. government can guarantee, with 100 percent assurance, that they are not members, supporters, or sympathizers of the so-called Islamic State of Iraq and Syria (ISIS).”

It’s obviously intended to be an unattainable threshold, but that’s really beside the point—the whole thing is completely wrong-headed.

I was moved to respond, and sent him this message via the contact form on his website:

I wanted to say that I was appalled by the letter to president Obama that you shared with me.

Since 9/11, the number of refugees who have committed terrorist attacks in the US is exactly zero—which suggests to me that keeping refugees out of the US is a complete waste of time and effort.

Targeting refugees—the most helpless and vulnerable among us—is not only pointless, it is also heartless and cruel. It is a failure to live up to our obligations under international law. It is also, in my opinion, terribly unamerican.

There are far better, far more effective ways to protect US citizens than by heaping yet more misery on those who have already faced the violent extremism of ISIS—those Syrians who have been forced by it to flee their own country.

I urge you to write to the president and let him know that you repudiate your entire letter, and to suggest that existing US policies on refugees, established in accordance with international law, should remain in place.

Another eleven senators signed the letter. If yours was one of them, you might want to contact your senator and say something. Feel free to borrow from my text, if it speaks to you.

Jackie and I rode the yellow bus into campus yesterday evening and attended a reception for and talk by Rick Bell about Active Design—using architecture to encourage people to move more, to eat better, etc.

We enjoyed it, and found the ideas very interesting, even though the talk itself was only fair—a long series of slides with pictures of places that exemplified one or another aspect of what he’s talking about, arranged geographically rather than according to the principles he’s suggesting. (The talk would have been more interesting for me if it had been organized by idea, rather than by place.)

One focus throughout the talk was on staircases. Of course any multilevel public space needs to have elevators (to make the space available to people who can’t climb stairs) and perhaps other things as well—ramps, escalators, and so on. But stairs are required too (for fire safety, if nothing else) and Bell points out that staircases can be done well or badly. In a bare concrete box closed in behind fire doors, they’re pretty uninviting. Brought out front and center, they can be wonderful. They can be beautiful design elements—glass stairs can float in the space, mirrored risers can reflect the space, etc. Staircases—if they’re broad enough—can also be places where people gather in small groups to stand or sit together. He had a photo of what I guess is a famous red staircase being used that way. (The talk was for architecture students, and was full of references to famous architecture and architects that mostly meant very little to me.)

He also had some photos of places where these things had been done badly, such as a second-floor fitness center with escalators to the entrance, and no sign of where the stairs might be, even if you wanted to use them.

There’s a lot to Active Design besides staircases—walkable spaces, bicycling infrastructure, creating (often re-creating) multimodal transportation infrastructure (like having bike paths and foot paths lead to and from the bus station, and having the bus station co-located with the train station and a bicycle rental place), seasonally appropriate spaces (like skating rinks), bringing food production into the city center, etc.

I’m glad we went. I’m glad we went by bus, rather than driving.

In his dedication to educating the public about the zero bound, Paul Krugman has asked several times (most recently today):

. . . what calculation leads to the notion that a target of “close to but less than 2%” is appropriate, as opposed to, say, 3 or 4 percent.

I think I know the answer: An inflation rate of 2% is small enough that price changes due to inflation are unnoticeable in the noise of other price changes, even over periods of a few years.

Among the costs of inflation are those that come from uncertainty about not only future prices, but also about current prices.

When inflation is under 2%, the price of a cookie at the local bakery might remain unchanged for years at a time. I can stop by the bakery with exact change, and be reasonably confident that I’ll be able to buy one. The costs of flour, sugar, and chocolate will vary over time—but some will rise and others will fall, and the bakery will be able to hold the line on the price of a cookie. This is a convenience for me. It’s also good for the bakery, because people who are confident that they have enough cash in their pocket to buy a cookie are more likely to stop and get one. If they had to make a stop at the ATM first to get cash—or worse, be sent away to visit an ATM mid-transaction—they might not.

At some point—and I assert that the point turns out to be slightly above a 2% inflation rate—stores find that it’s necessary to raise prices at least annually, just to keep up with inflation.

Even if the inflation rate is known and not a surprise, there’s still the threshold effect of one day the price is $x and the next day it’s $x+3%.

When the inflation rate is below 2%, prices can remain stable for years at a time—long enough for people to learn what they are. And that knowledge can make their day run more smoothly. They can be sure they have appropriate cash on hand. They don’t need to check prices ahead of each transaction.

When the inflation rate is above 3%, stores might need to raise prices twice a year, to avoid falling behind. When the prices of a hundred things are all being raised more often than annually, it becomes impossible to learn what prices are, and impossible for that knowledge to make the day run more smoothly. All of a sudden, you have to pay attention to price changes, because they’re happening all the time. In advance of every transaction, you need to allow for the fact that maybe today is the day that prices went up several percent.

Some prices change all the time anyway, especially where the item being sold is a single commodity, such as milk or gasoline. For exactly this reason, prices of those items are often prominently displayed—to reduce the transaction effort of the consumer who wants to know what the price is going to be.

I think that’s why 2% inflation is different from 3–4% inflation: Because price changes due to inflation begin to stand out from changes in relative prices, adding another whole layer of informational costs on every purchaser, on every purchase.