Monthly Archives: April 2023

China won’t invade Taiwan, perhaps Vietnam

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For 2000 years Chinese rulers have either fixed the problems caused by their predecessors, or become the absolute ruler who brings new problems and a war. Eighteen times over the last 2000 years, the absolute ruler has chosen is to invade Vietnam. Chairman Xi Jinping took full power over China five years ago, and as I predicted then, purged the party of all other competent leaders, including his predecessor, Hu. He now has to do something, and that’s typically a war. Xi talks like he’d like to invade Taiwan, but I believe he’ll invade Vietnam instead, as so many others did before him. Taiwan (Formosa) is separated from mainland China by 100 miles of open sea. There’s been only two successful, modern invasions; by the Qing Chinese in 1683 with the help of the Dutch fleet, and in 1895 by Japan against the 5 month old Republic of Taiwan. Vietnam is much easer to invade: you just have to walk in.

Chiang KaiShek with Roosevelt and Churchill. He took power after WWII.Taiwan is now a Republic

Here’s my brief summary of 60 years of cyclical Chinese history: In the last decade of his life, 1966-76, Mao Zedung brought a horrible cultural revolution, killing 100 million or so by violence and famine, targeting anyone who might disagree with him. He was followed by Hua Kuofeng, Hu Yaobang, and Zhao Ziyang. They removed “the Gang of Four” and brought reform, toleration, and some rapprochement with the west. Hu also returned some autonomy to Tibet. Deng Xiaoping followed, put Zhao under house arrest, removed Hua and Hu (only recently buried), absorbed Tibet, invaded Vietnam, instituted a brutal on-child policy with, forced abortions and sterilizations, and put down the Tiananmen uprising 1989 -an uprising caused by the removal of Hu. Deng was followed by Jiang Zemin and Hu Jintao who exited Vietnam, lightened the one-child policy, and brought back some measure of freedom. This lead to Xi Jinping who appears to be in the mold of Mao and Deng. He’s removed Hu publicly during a communist party meeting, has taken absolute control, arrested China’s business innovators, and (likely) caused a pandemic by unsafe research at the Wuhan bio-research facility. His response to the pandemic is worthy of Mao: he welded people into their homes. Xi now needs a war to unify the country, and talks like he’ll invade Taiwan. Xi might do it; he has increased military spending by 2.5 times, to double that of the EU (equal to US spending). His army is likely to be used somewhere soon. But where?

At first glance, it makes some sense to think he’ll invade Taiwan. He has the same justification as Deng had for Vietnam, “to punish the wayward province.” Taiwan is small, 23 million people, and very rich (GDP = $1.3T, 10-15% of China). It’s especially rich in high-tech areas that Xi seems to want, and China ruled the island (Formosa) for 212 years between 1683 and its brief independence in 1895. I expect that Xi will invade Vietnam though, for many of the same reasons that Deng did: it’s easier, and the invasion won’t destroy US trade. Vietnam will not be super easy to conquer, of course, Putin’s invasion of Ukraine looks like it will go on for years, but Xi has 100 million men of military age. Driving these men into Vietnam is a lot easier than an amphibious invasion. Vietnam now, as then, has few friends -perhaps only India -while Taiwan has many (The US and Japan, primarily), and they have naval breakwaters that would make an amphibious landing difficult. Vietnam is only about half as rich as Taiwan (GDP = $650 B), but it has two things China needs more than technology: oil and food.

The Japanese invasion of independent Taiwan, The Republic of Formosa, in 1895. It took 5 months despite lopsided advantages. Plus 7 years to pacify the population.

Japan’s invasion of the Republic of Formosa in 1895 would have to be the model for a Chinese invasion today, assuming that’s the route Xi would take. Japan used a small force of 20,000 highly trained men, and a surprise landing at two sites. The formosan army of 75,000 was hardly armed, but it still took the Japanese 5 months to defeat them. It took another 7 years to pacify the population. Taiwan today is a lot better prepared than it was, with modern missiles and drones, a well-trained army of 500,000, and an active navy. Japan, Philippines, and the US would likely try to resupply Taiwan, and would have to be blockaded to prevent delivery. This is not so easy, since the nearest Japanese island is closer to Taiwan than Taiwan is to mainland China, and the Philippines is not far either. Then there are the sanctions that would follow an invasion of Taiwan, but not an invasion of Vietnam: the freezing of assets and the closing of markets. Susch sanctions have been tough on Russia but they would be devastating to China since China imports most of its oil and half of its food, much of it by sea. Whatever Xi gets from invading Taiwan will not match these losses, and I think Xi know it.

China’s new military bases are located around Vietnam, not around Taiwan

I suspect that Xi has already concluded that Vietnam is the smart place to invade. Supporting this view is a look at his preparations. Xi has not built the landing fleet that he’d need for Taiwan, but has instead militarized Hainan Island, plus four other, newly constructed, illegal islands in the South China Sea. These islands surround Vietnam, and are well suited to cut off the country from western aid. They are too far south to be effective in an action against Taiwan. You can tell a lot about what a person will do from what he has done, and what Xi has done is to prepare for an invasion of Vietnam.

Robert Buxbaum, April 27, 2023.

Of walking sticks, canes, scepters, and wands.

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Franklin’s walking stick, willed to General Washington. Now in the Smithsonian.

Many famous people carried walking sticks Washington, Churchill, Moses, Dali. Until quite recently, it was “a thing”. Benjamin Franklin willed one, now in the Smithsonian, to George Washington, to act as a sort of scepter: “My fine crab-tree walking stick, with a gold head curiously wrought in the form of the cap of liberty, I give to my friend, and the friend of mankind, General Washington. If it were a Scepter, he has merited it, and would become it. It was a present to me from that excellent woman, Madame de Forbach, the dowager Duchess of Deux-Ponts”. A peculiarity of this particular stick is that the stick is uncommonly tall, 46 1/2″. This is too tall for casual, walking use, and it’s too fancy to use as a hiking stick. Franklin himself, used a more-normal size walking stick, 36 3/8″ tall, currently in the collection of the NY Historical Society. Washington too seems to have favored a stick of more normal length.

Washington with walking stick

Walking sticks project a sort of elegance, as well as providing personal protection. Shown below is President Andrew Jackson defending himself against an assassin using his walking stick to beat off an assassin. He went on to give souvenir walking sticks to friends and political supporters. Sticks remained a common political gift for 100 years, at least through the election of Calvin Coolidge.

Andrew Jackson defends himself.

I started making walking sticks a few years back, originally for my own use, and then for others when I noticed that many folks who needed canes didn’t carry them. It was vanity, as best I could tell: the normal, “old age” cane is relatively short, about 32″. Walking with it makes you bend over; you look old and decrepit. Some of the folks who needed canes, carried hiking sticks, I noticed, about 48″. These are too tall to provide any significant support, as the only way to grasp one was from the side. Some of my canes are shown below. They are about 36″ tall, typically with a 2″ wooden ball as a head. They look good, you stand straight, and they provides support and balance when going down stairs.

Some of my walking sticks.

I typically make my sticks of American Beech, a wood of light weight, with good strength, and a high elastic modulus of elasticity, about 1.85 x106 psi. Oak, hickory, and ash are good options, but they are denser, and thus more suited to self-defense. Wood is better than metal for many applications, IMHO, as I’ve discussed elsewhere. The mathematician Euler showed the the effective strength of a walking stick does not depend on the compressive strength but rather on elastic constant via “the Euler buckling equation”, one of many tremendously useful equations developed by Leonhard Euler (1707-1783).

For a cylindrical stick, the maximum force supported by a stick is: F = π3Er4/4L2, where F is the force, r is the radius, L is the length, and E is the elastic modulus. I typically pick a diameter of 3/4″ or 7/8″, and fit the length to the customer. For a 36″ beech stick, the buckling strength is calculated to be 221 or 409 pounds respectively. I add a rubber bottom to make it non–scuff and less slip-prone. I sometimes add a rope thong, too. Here is a video of Fred Astaire dancing with this style of stick. It’s called “a pin stick”, in case you are interested because it looks like a giant pin.

Country Irishmen are sometimes depicted with a heavy walking stick called a Shillelagh. It’s used for heavier self-defense than available with a pin-stick, and is generally seen being used as a cudgel. There are Japanese versions of self defense using a lighter, 36″ stick, called a Han-bo, as shown here. There is also the wand, as seen for example in Harry Potter. It focuses magical power. Similar to this is Moses’s staff that he used in front of Pharaoh, a combination wand and hiking stick as it’s typically pictured. It might have been repurposed for the snake-on-a-stick that protects against dark forces. Dancing with a stick, Astaire style, can drive away emotional forces, while the more normal use is elegance, and avoiding slips.

Robert Buxbaum, April 20, 2023.

Britons did better than Germans since Brexit

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Britain and Germany are the two largest economies in Europe. When Britain voted to leave the EU seven years ago, 23 June 2016, economists, royals, and the richer, smarter set predicted disaster. The unemployment rate at the time was 5.2% in the UK; economists guaranteed it would rise with Brexit due to the loss of access to the common market. Unemployment fell to 3.7% today: Embarrassing for economists, a bonus for British workers. Germany unemployment today is 5.6%, basically slightly higher than the 4.3% of 2016. There has been a large influx of Ukrainians into both countries, and of illegal boat people into the UK. These are people coming to get jobs, seeking a better life than available in the rest of the EU. That boat people don’t go the other way suggests that things are better in the UK.

Fromm Bloomberg, October 2022. See full article here. UK unemployment is down to 2.5% in February 2023.

Britain’s GDP was supposed to suffer from Brexit, too. Instead, GDP has grown by 18% since 2016, about 2.5% per year on average, outpacing Germany’s 10.6% total growth, 1.5% per year. Between 2016 and 2022, the British GDP rose to $3.19T from $2.7 T. Germany’s GDP increased to $3.57T, from $3.14T (data from the world bank). Separating from the EU helped, it seems and helped us too something Trump promoted. Germany chose close ties to Russia instead. That does not seem to be a big plus.

German Inflation has traditionally been low. It has increased in the past few months due to rising food and energy costs.

Inflation is higher in the UK than in Germany, 10.4% as of February 2023 versus 8.7% in Germany, or 9.9% in the European Union and a whole. I don’t think that’s Brexit. The UK typically has seen higher inflation rate than Germany, something seen by the steady drop of the pound. They have a tradition of inefficiency and silliness. Part of the problem today is that Britain gets much of its electricity from natural gas, while the French use nuclear power. Nuclear is cheap and clean, compared to natural gas. Coal is cheap and dirty; China uses it extensively and plans to use more. But the real cause of the UK’s higher inflation is inherent in the British and Germans, IMHO. The Germans hate inflation, the Brits don’t mind.

Population growth (green) or decline (orange) in Europe

For high-power, white collar workers, Britain seems to be as good a spot as Germany, maybe better. Maximum tax rates are slightly lower than in Germany (45% vs 47.45%), and the population is growing (slowly). Apparently, people like it enough to come there and have children; children are a good sign, IMHO. It’s harder to get good workers, but population growth suggests that the problems won’t be catastrophic (as they were in Japan, and likely will be in Germany). If you want a developed economy with yet-lower taxes, plus good workers, the US is the place to be, IMHO. Our maximum tax rate is 37%. You get fewer free services (healthcare), but you can earn enough to afford it. Prince Harry moved to the US recently, joining foot-baller David Beckham, and Pele a few years back. Former Python, John Cleese, came here too… They complain that Americans are cheap when it comes to helping others (but that’s out attraction). They claim that we’re violent and crass (true enough!) but say that the UK isn’t what it was. The fact that refugees seem to prefer the UK to Germany, suggests that Britain is a place to go. Britain, I’d say seems to have come out pretty well from Brexit.

Robert Buxbaum, April 11, 2023

Every food causes cancer, and cures it, research shows.

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Statistical analysis, misused, allows you to prove many things that are not true. This was long a feature of advertising: with our toothpaste you get 38% fewer cavities, etc. In the past such ‘studies’ were not published in respectable journals, and research supported by on such was not funded. Now it is published and it is funded, and no one much cares. For an academic, this is the only game in town. One result, well known, is the “crisis of replicability”– very few studies in medicine, psychology, or environment are replicable (see here for more).

In this post, I look at food health claims– studies that find foods cause cancer, or cure it. The analysis I present comes from two researchers, Schoenfeld and Ioannides, (read the original article here) who looked at the twenty most common ingredients in “The Boston Cooking-School Cook Book”. For each food, they used Pub-Med to look up the ten most recent medical articles that included the phrase, “risk factors”, the word “cancer”, and the name of the food in the title or abstract. For studies finding effect in the range of 10x risk factors to 1/10 risk factors, the results are plotted below for each of the 20 foods. Some studies showed factors beyond the end of the chart, but the chart gives a sense. It seems that most every food causes or cures cancer, often to a fairly extreme extent.

Effect estimates by ingredient. From Schoenfeld and Ioannides. Is everything we eat associated with cancer? Am J. Clin. Nutrition 97 (2013) 127-34. (I was alerted to this by Dr. Jeremy Brown, here)

A risk factor of 2 indicates that you double your chance of getting cancer if you eat this food. Buy contrast, as risk factor of 0.5 suggests that you halve your cancer risk. Some foods, like onion seem to reduce your chance of cancer to 1/10, though another study say 1/100th. This food is essentially a cancer cure, assuming you believe the study (I do not).

Only 19% of the studies found no statistically significant cancer effect of the particular food. The other 81% found that the food was significantly cancer-causing, or cancer preventing, generally of p=0.05 to 0.05. Between the many studies done, most foods did both. Some of these were meta studies (studies that combine other studies). These studies found slightly smaller average risk factors, but claimed more statistical significance in saying that the food caused or cured cancer.

0.1 0.2. 0.5 1. 2 5 10
Relative risk

The most common type of cancer caused is Gastrointestinal. The most common cancer cured is breast. Other cancers feature prominently, though: head, neck, genetilia-urinary, lung. The more cancers a researcher considers the higher the chance of showing significant effects from eating the food. If you look at ten cancers, each at the standard of one-tailed significance, you have a high chance of finding that one of these is cured or caused to the standard of p=0.05.

In each case the comparison was between a high-dose cohort and a low-dose cohort, but there was no consistency in determining the cut-offs for the cohort. Sometimes it was the top and bottom quartile, in others the quintile, in yet others the top 1/3 vs the bottom 1/3. Dose might be times eaten per week, or grams of food total. Having this flexibility increases a researcher’s chance of finding something. All of this is illegitimate, IMHO. I like to see a complete dose-response curve that shows an R2 factor pf 90+% or so. To be believable, you need to combine this R2 with a low p value, and demonstrate the same behaviors in men and woman. I showed this when looking at the curative properties of coffee. None of the food studies above did this.

From Yang, Youyou and Uzzi, 2020. Studies that failed replication are cited as often as those that passed replication. Folks don’t care.

Of course, better statistics will not protect you from outright lying, as with the decades long, faked work on the cause of Alzheimers. But the most remarkable part is how few people seem to care.

People want to see their favorite food or molecule as a poison or cure and will cite anything that says so. Irreplicable studies are cited at the same rate as replicated studies, as shown in this 2020 study by Yang Yang, Wu Youyou, and Brian Uzzi. We don’t stop prescribing bad heart medicines, or praising irreplaceable studies on foods. Does pomegranate juice really help? red wine? there was a study, but I doubt it replicated. We’ve repeatedly shown that aspirin helps your heart, but it isn’t prescribed much. Generally, we prefer more expensive blood thinners that may not help. Concerning the pandemic. It seems our lockdowns made things worse. We knew this two years ago, but kept doing it.

As Schoenfeld and Ioannides state: “Thousands of nutritional epidemiology studies are conducted and published annually in the quest to identify dietary factors that affect major health outcomes, including cancer risk. These studies influence dietary guidelines and at times public health policy… [However] Randomized trials have repeatedly failed to find treatment effects for nutrients in which observational studies had previously proposed strong associations.” My translation: take all these food studies with a grain of salt.

Robert Buxbaum, April 4, 2023