Category Archives: Web Article Review

visualizing tunnel progress

Metro Los Angeles has put together kind of a nice graphic to communicate the status of a tunnel construction project. It’s cartoonish, and yet contains a surprisingly large amount of scientific and engineering information.

 

ignorance and common sense

You would think ignorance and common sense would be opposites. But the term “common sense” has been in fact ruined because of its adoption by ignorant people. I’m not going to name names, but I have one particular U.S. President and political party in mind. Having common sense has come to be defined as believing one’s opinion is the truth. If you believe your opinion is the truth, you not only don’t know the limits of your knowledge, you can take willful steps to avoid acquiring knowledge, and you are completely impervious to evidence or logic others might attempt to share with you. Here are some illuminating quotes from a 2016 Washington Post article somewhat sadly titled Donald Trump doesn’t read much. Being president probably wouldn’t change that.

He said in a series of interviews that he does not need to read extensively because he reaches the right decisions “with very little knowledge other than the knowledge I [already] had, plus the words ‘common sense,’ because I have a lot of common sense and I have a lot of business ability.”

Trump said he is skeptical of experts because “they can’t see the forest for the trees.” He believes that when he makes decisions, people see that he instinctively knows the right thing to do: “A lot of people said, ‘Man, he was more accurate than guys who have studied it all the time…’ ”

Trump said reading long documents is a waste of time because he absorbs the gist of an issue very quickly. “I’m a very efficient guy,” he said. “Now, I could also do it verbally, which is fine. I’d always rather have — I want it short. There’s no reason to do hundreds of pages because I know exactly what it is.”

What is that old saying – he who knows not he knows not, he is a fucking idiot with control of the world’s largest nuclear arsenal. Hopefully his age, propensity for temper tantrums, and fast food habit will lead to him having a stroke and dropping dead relatively soon.

If the Secret Service is reading this, yes I hope he dies soon of natural causes, no I wouldn’t pull the trigger myself, but I would be happy to bring the next silver-plated platter of Big Macs.

On the lighter side, Trump is not the first President with a supposed Big Mac habit. Maybe he will join Bill Clinton’s vegan club. No word yet on whether Hillary has come up with a vegan cookie recipe.

Article V

I think most Americans have a basic understanding that the Constitution can be amended, but that this is hard to do and therefore is not done very often. We treat our Constitution almost as a sacred text and that is one reason that even though our country is young compared to many others, its form of government has persisted in its current form longer than almost any other (I want to say longer than any other, but someone more knowledgeable than me could probably prove me wrong.)

Anyway, there is another way amendments can happen without the consent of Congress, which is for legislatures in two thirds of the states to force a constitutional convention. Sure, we all read about that when we studied the Colonial period in elementary school, right? I can actually walk over to Independence Hall on my lunch break any time I want and see where that all happened.

It turns out that as of now, December 2017, 28 U.S. state legislatures have voted to call a constitutional convention. 34 states would represent the two-thirds required. This could be a good thing. For example, a constitutional convention could clarify the definition of a “person” and get us the clean elections we so deserve. But that is not what is behind this. What is behind this is people who want to gut the federal government’s ability to tax, provide benefits, regulate interstate commerce, and protect the environment. This could actually be the beginning of the end of the republic.

liquid metal

The “liquid metal” from Terminator 2 is finally here, although it is not trying to kill us (yet). Still, if they start making autonomous drones out of this stuff…

“If you look at conventional aircraft technology, you have so many moving parts,” says Othmane Benafan, an engineer at NASA’s Glenn Research Center. Those moving parts are essential—they are how pilots steer, reduce turbulence, take off, land, and basically do everything else besides glide aimlessly. But the actuators, cables, motors, lubricant, hydraulic gear, and other bits needed move those parts around take up weight and space—precious resources on any aircraft.

The alternative is to move those wing parts using shapeshifting metals. Or, as they’re known to engineers, shape memory alloys. “Parts made from shape memory alloys are typically 10 to 20 percent the size and weight of a conventional part,” says Jim Mabe, a shape memory alloy guru at Boeing. For an industry that spent $133 billion on fuel last year, anything smaller and lighter is exciting news.

Shape memory alloys are essentially reversible Shrinky Dinks. When heated to certain temperatures, they shrink, twist, and bend. Cool them off, and they return to their original shape. Hot, cold, hot—shape memory alloys can cycle back and forth millions of times without wearing out. All you need is the ability to generate heat or pull it from some other, already spicy hot part of the plane, like the engine.

bond ratings and climate change

Even if the U.S. federal government officially doesn’t believe in climate change, the municipal bond industry officially does believe in climate change.

In a report to its clients Tuesday, Moody’s Investors Service Inc. explained how it incorporates climate change into its credit ratings for state and local bonds. If cities and states don’t deal with risks from surging seas or intense storms, they are at greater risk of default…

In its report, Moody’s lists six indicators it uses “to assess the exposure and overall susceptibility of U.S. states to the physical effects of climate change.” They include the share of economic activity that comes from coastal areas, hurricane and extreme-weather damage as a share of the economy, and the share of homes in a flood plain…

Bloomberg News reported in May that towns and counties were able to secure AAA ratings despite their risks of flooding and other destruction from storms, which are likely to be more frequent and intense because of climate change. If repeated storms and floods are likely to send property values — and tax revenue — sinking while spending on sea walls, storm drains or flood-resistant buildings goes up, investors say bond buyers should be warned.

the CFPB

Simon Johnson says the Consumer Financial Protection Bureau has actually been doing a good job up until now of, well, protecting consumer finances.

The CFPB was established by the 2010 Dodd-Frank financial-reform legislation to do exactly what its name implies: protect consumers in their various financial transactions. A new agency was needed because existing regulators, including the Board of Governors of the Federal Reserve System, had manifestly and repeatedly failed to protect consumers from abuses, such as deceptive and fraudulent mortgage-lending practices, some of which were at the heart of what went wrong in 2007-08.

As Elizabeth Warren (then a consumer advocate, now a US senator from Massachusetts) powerfully pointed out, there was a lot more protection for people buying toasters than for someone taking out a 25-year mortgage. Finance is complex, and a lot of devils could be, and were, hidden in the details. The CFPB was designed, above all, to bring greater transparency to consumers’ financial transactions – actually a very pro-market contribution.

And the CFPB has done exactly what Congress designed it to do. So far, the Bureau has arranged for the return of almost $12 billion to 29 million consumers. At the same time, banks are reporting record profits – on the order of $171 billion, according to the latest data. The CFPB is good for business, or at least for the straightforward, transparent business of traditional lending.

Unfortunately, all this seems likely to end as Trump has appointed someone to head the agency who is actually against the agency’s existence, not unlike his approach to the environment, housing, and education. Johnson seems to think the public will catch on to this and punish the Republicans politically when the little guy starts to get hurt by it. I don’t know, it probably depends on the timing. Nobody wants to see another financial blow-up, but if it has to happen mid-2020 seems as good a time as any.

Google Scholar, Microsoft Academic, and open science

Wired talks about how Google Scholar is changing the academic publishing industry as open science starts to take hold, and how Microsoft Academic might be an even better search engine. There are also a lot of other emerging search engines out there, which the article goes into.

I use Google Scholar quite a bit, even though Google sort of stopped advertising it and makes you go through a couple extra clicks to get to it. I didn’t know Microsoft Academic or most of these other tools existed.

macroeconomic models and tax cuts

The Economist has a piece on macroeconomic models used to evaluate tax policy.

Lurk near PhD economists online or at conferences, and you will hear them talk about “crisis in macro”. They mean that the models and assumptions most dominant among macroeconomists have failed repeatedly since 2007 to predict or even describe what’s happening. A defence, popular among academics, goes like this: we did get it wrong, but as responsible social scientists, we’re busy and fascinated right now, trying to figure out what was broken and how to fix it. It is a fair defence. In particular young macroeconomists have been using bigger datasets and faster computers to more accurately predict human behaviour. Economists are more likely to accept now, for example, that people with and without access to credit or wealth react differently to the same policy, an idea that is slowly working its way into models at central banks and even at the Joint Committee on Taxation.

This progress is unfortunate for Republicans. In the 1990s social science was on their side. Because data and computing power were harder to come by, macroeconomic models relied on thought experiments. The seminal model showing the ideal capital-gains tax rate as zero, for example, dates to 1986. It assumes that the economy consists of only one person. Also, she is immortal. The Wonder Woman economy, if you will. That model is now interesting only for a lecture on the history of economic thought. We’ve moved on, macroeconomists protest. But economists have. And Republicans haven’t…

But if you are going to insist on modeling the future and then planning around it, you have to do it right. The economists at the Joint Committee on Taxation are thoughtful. They read the most recent research. They examine their own models and, when they can, update them—conservatively. If, as Republicans have been insisting for 20 years, we have to assess our tax policies with dynamic scoring, there is no better way to do it than through the JCT. Unfortunately, as modeling has improved, it has not improved in the direction Republicans prefer, which leaves them where they are now. They wanted social science in policy-making, and they got it, in the form of a $1trn tax bill.

I don’t know how any ethical person can support the Republican party right now. They don’t care about facts, logic, or evidence, and certainly not economic growth or raising the living standards of their constituents. They are blantantly and shamelessly committed to lining the pockets of their big-business funders. It’s corrupt, undemocratic and shameful.