Author Archives: rdmyers75@hotmail.com

about 80% protection against Covid-19 reinfection in a Danish study

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When scientists are saying “we are not 100% sure” people who have had Covid-19 will have some immunity to reinfection, many smart people I know are hearing “people who have had Covid-19 have no immunity to infection”. Similarly, when scientists say they are not absolutely sure vaccinated people will not spread the virus (although they are quickly changing their tune on this one as they look at the evidence), people are hearing that vaccinated people are spreading the virus. Here is at least one study showing that when people who had a confirmed infection were tested again three months later, protection against reinfection was pretty good but not perfect at about 80%. It appears to have been lower in people over 65 at about 50%.

The CDC and others have also thrown out 3 months as a minimum amount of time they are confident people are protected against reinfection or protected by a vaccine. I think this is just a conservative estimate in the face of limited information, but again the public is hearing “no protection after 3 months”. In this study, they tested again after 6 months and found no decrease in the level of protection (still about 80%).

So my view is that logic suggests being infected would provide at least some protection against reinfection and being able to spread the virus, and the same for vaccination. I say this because this is how other diseases work. And now the data are backing that up. The science and public health policy communication are still pretty bad, and like a toxic spill, bad communication that takes a few hours can take years to clean up on the surface and there will still be puddles of toxic mess for decades whenever you turn over a rock.

a new book about longevity research

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We should try to be more like the Galapagos tortoises, which achieve a state of “negligible senescence” and stay there for many decades. This is according to a new book called Ageless: The New Science of Getting Older without Getting Old. From the New York Times (which, just as a reminder, I will never subscribe to until/unless they apologize for lying to me about weapons of mass destruction):

This is, in fact, “what we should aim for,” Steele says: “a risk of death, disability, frailty and illness which doesn’t depend on how long ago you were born.” In precise and sometimes dense detail he lays out the means by which science could effectively eliminate human aging. These approaches fall into four categories: “removing bad things that accumulate,” “renewing things which are broken or lost,” “repairing things which are damaged or out of kilter” and “reprogramming our biology to slow or reverse aging.”

New York Times

Overpopulation and funding pensions might become an issue in such a world. Then again, if we are really losing our ability to reproduce through natural means, we might need to become a living dead species just to be able to stick around for awhile.

how the U.S. dollar could fall

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Here is an article by Kenneth Rogoff on how the U.S. dollar could lose its privileged position relative to other currencies long-term. Basically, this would be bad because suddenly the U.S. would have to pretend as though money is actually real. The government, businesses, and homeowners would have to pay actual interest on their debts, and would have less money to spend on other things. Traveling, working, and living abroad would also get more expensive in dollar terms. On the other hand, imported things would get more expensive but exports would get cheaper for people in other countries to buy, and this might boost trade. There are geopolitical implications too which I don’t understand well.

Anyway, here is how Rogoff says it could go down:

  • Up until now, China has pegged its currency to a “basket of currencies” in which the dollar has a fairly large weight. Its currency is lower than it would probably be if traded openly without restrictions. This helps China export cheaply, just as I mentioned above. But eventually they may want to change this, for similar reasons as I mention above.
  • Other Asian countries may eventually adopt Chinese currency, peg their currencies to Chinese currency, and start using Chinese currency as reserve savings. This would all increase the status and stability of the Chinese currency internationally relative to the dollar. So far, countries around the world (including China) have kept mostly dollars in reserve because they consider it the most safe, stable currency.

March 2021 in Review

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Most frightening and/or depressing story: In the U.S. upper Midwest (I don’t know if this region is better or worse than the country as a whole, or why they picked it), electric blackouts average 92 minutes per year, versus 4 minutes per year in Japan.

Most hopeful story: I officially released my infrastructure plan for America, a few weeks before Joe Biden released his. None of the Sunday morning talk shows has called me to discuss so far. Unfortunately, I do not have the resources of the U.S. Treasury or Federal Reserve available to me. Of course, neither does he unless he can convince Congress to go along with at least some portion of his plans. Looking at his proposal, I think he is proposing to direct the fire hoses at the right fires (children, education, research, water, the electric grid and electric vehicles, maintenance of highways and roads, housing, and ecosystems. There is still no real planning involved, because planning needs to be done in between crises and it never is. Still, I think it is a good proposal that will pay off economically while helping real people, and I hope a substantial portion of it survives.

Most interesting story, that was not particularly frightening or hopeful, or perhaps was a mixture of both: One study says 1-2 days per week is a sweet spot for working from home in terms of a positive economic contribution at the national scale. I think it is about right psychologically for many people too. However, this was a very theoretical simulation, and other studies attempting to measure this at the individual or firm scale have come up with a 20-50% loss in productivity. I think the jury is still out on this one, but I know from personal experience that people need to interact and communicate regularly for teams to be productive, and some people require more supervision than others, and I don’t think technology is a perfect substitute for doing these things in person so far.

What wild animals were at the Wuhan market?

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It seems that the efforts to trace Covid-19 back to bats in the Wuhan province are pretty inconclusive. SARS and MERS were both definitively (?) traced back to bats, so people seem to have jumped to this conclusion. “Similar” viruses have been found in bats, but bats have all kinds of things and the family of coronaviruses seems to be extremely common. The WHO team does say it is extremely unlikely that any of the “several” laboratories studying coronaviruses in the city would have made a mistake leading to emergence of this virus. (This alone raises a few questions for me. Is it unusual for a city the size of Wuhan in China or other countries to have several laboratories with coronaviruses lying around? Or do most big cities have some kind of epidemiological laboratory, and the family of coronaviruses is so common that almost any lab would have examples of it in the fridge? What about the dangerous ones.) They also say definitively this is a natural virus, not a genetically engineered one.

I’ve been to “wet markets” in Singapore and Thailand, which could well be tame compared to the one in Wuhan, I have no idea. I would hypothesize that you have a lot of people working, shopping, and eating in very close proximity to each other. Sometimes you have people doing grosser things, like smoking, or spitting. Cats and dogs sometimes roam freely. And sometimes these markets are air conditioned, I have seen it both ways. So if someone already had the virus, it might have spread between people in the market and have nothing particularly to do with food or wild animals.

But I found it interesting to read what wild animals were actually for sale in the Wuhan market. Do people eat bats, or keep them as pets? (And before you judge as a westerner, be aware people in other cultures are just as horrified by some of our habits and things we eat as we are by some of theirs.)

The so-called wet market had 653 stalls and more than 1,180 employees supplying seafood products as well as fresh fruit and vegetables, meat, and live animals before it closed on Jan. 1, 2020. Days before, 10 stall operators were trading live wild animals, including chipmunks, foxes, raccoons, wild boar, giant salamanders, hedgehogs, sika deer. Farmed, wild and domestic animals were also traded at the market including snakes, frogs, quails, bamboo rats, rabbits, crocodiles and badgers…

Bloomberg

So no bats mentioned. I also find myself thinking about the various “bird flu” and “swine flu” scares of the past. It is often human-livestock contact that gives rise to concerning pathogens, so we should keep that in mind. And of course, there are still plenty of deadly pathogens being spread by mosquitoes, fleas and ticks while we are fixated on this one (admittedly horrific) unusual coronavirus incident.

what Singapore does well

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After reading this long article in the London Review of Books, I find myself reflecting on my own experience in Singapore from 2010-2013. Here’s my take on what they do well. First, they educate everybody. Everybody is not an international math champion, despite what you might think, but everybody gets a solid education through at least a two-year vocational degree. Second, they build their economy by attracting foreign investment and being a center of trade. Third, they have rational guest worker policies for both skilled and unskilled workers. I think all this keeps the economy humming along pretty well. Then, they have rational tax policies. They help the population build wealth through a subsidized housing program (often called “public housing” in the international press, but think of it more like a condo you own with the government as your condo association. If you meet certain requirements (which include race and fertility, policies that would not translate well everywhere), you essentially get to buy your condo at a discount and sell it at full price. Then there is essentially a forced saving scheme, which is invested in the well-managed sovereign wealth fund and given back to people in annuity form at retirement age.

That’s what I liked. I felt the focus on economics resulted in a society where a lot of people really are all about money, and people are somewhat cold to each other. The idea of technocratic government and leadership development works up to a point, but it results in a certain arrogance that does not always match ability. They have comprehensive and highly efficient public transportation, but they still separate residential and commercial land uses and this results in really long commutes for people. And if you are not from there, the place just feels a bit crowded, loud and claustrophobic after awhile.

I had the fortune of experiencing an election while I lived there, and I came away thinking that their one-party-dominated system is not all that different than our two-similar-party-dominated system, at least in terms of barriers to entry and resistance to change. But overall, I think their system is working better in the interest of their people than the U.S. system in recent years.

dolphins and extraterrestrials

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No, dolphins are not communicating with extraterrestrials that we know of. This Aeon article is pretty interesting stuff though about how the study of dolphin intelligence and the search for extraterrestrial intelligence have been intertwined over time though. The consensus these days seems to be that dolphins are as about as smart as a human toddler, which is pretty smart if you think about it, but not smart enough to build a technological civilization. This article contains some musings about whether technological civilizations are the inevitable end state of the evolution of intelligent life, whether another one would arise on Earth if ours disappeared for some reason (but life itself did not), whether there are likely to be others out there, whether they are likely to have come and gone, and if so why.

Later, at the first Soviet-American conference on communication with extraterrestrial intelligence (CETI) in 1971, it was suggested by some attendees that we don’t see evidence of supercivilisations across the galaxy because the only ones that persist are the ones that give up the risky path of technology and instead pursue immersion in nature. Ageing civilisations either self-destruct or shift focus to something like Zen Buddhism, it was conjectured: pursuing spiritual and qualitative self-perfection at the cost of all interest in external reality or ‘“quantitative” expansion’. The Russian astrophysicist Vladimir M Lipunov speculated that, across the Universe, the scientific mindset recurrently evolves, discovers all there is to know and, having exhausted its compelling curiosity, proceeds to wither away. By 1978, the philosophers Arkadiy Ursul and Yuri Shkolenko wrote of such conjectures – concerning the ‘possible rejection in the future of the “technological way” of development’ – and reflected that this would be tantamount to humanity’s ‘transformation into something like dolphins’.

Aeon

It’s a bit of a puzzle why we haven’t discovered any signals out there despite looking for around half a century. I recently listed to this Science Vs. podcast where someone likened our search so far to dipping a cup in the ocean and not coming up with any fish. You wouldn’t conclude from that that fish do not exist, just that they do not exist where you dipped the cup. The expert interviewed went on to say that technology is improving and those cups are now turning into buckets.

some facts on special operations forces

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This Intercept article has some facts and figures on the growth of U.S. special operations forces.

U.S. Special Operations Command has grown exponentially over the last 20 years. “Special operations-specific funding” topped out at $3.1 billion in 2001, compared with $13.1 billion now. Before 9/11, there were roughly 43,000 special operations forces. Today, there are 74,000 military personnel and civilians in the command. Two decades ago, an average of 2,900 commandos were deployed overseas in any given week. That number now stands at 4,500, according to SOCOM spokesperson Ken McGraw.

Intercept

It seems to me they do the job of a much larger conventional military force, and the future of war (also known as “defense”) is probably some combination of special operations and high technology. My concern is when the military takes over functions more appropriate to civilian diplomats, which it seems to me has been happening.

productivity of working from home

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In industries with billable hours, productivity is not particularly easy to measure and an hour billed from home looks just fine on paper. To managers, that is an hour on a spreadsheet with somebody else paying for the coffee, lights, heat, insurance, cleaning (or just not cleaning), etc. But there are some studies from industries where productivity is more measurable. Results are all over the place, but this particular study from Japan puts working from home at about a 30% productivity loss compared to the office. Something in the range of a 20-50% loss seems to be a common assumption from a range of studies.

the Antikythera mechanism

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The Antikythera mechanism is a 2,000-year-old mechanical model of the solar system found in a sunken ship in the Mediterranean in 1901. It looks like a clock mechanism, but the strange thing is that there were no clocks yet at the time, so a puzzle is why, if the ancient Greeks or whoever built this had this technology, why didn’t they also have clocks? It is also a puzzle because scientists haven’t been able to recreate it using any known manufacturing technology available at the time. I’m not saying it was aliens, because the model shows the sun and other known planets (no telescopes until about 1600) revolving around the Earth, and spacefaring aliens would presumably know better, unless they were trying to trick us.