Category Archives: Mathematics

Business, Economics, Mathematics, Media Criticism, Political Commentary, Science And Society, Social Commentary, Technology and Society

Rick Perry’s Memo

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…and Bill Nye’s optimism:

I see “science fans” applauding and promoting Bill Nye’s call for 100% renewable generation by 2050. One might think if one endorsed Mr. Nye’s plan it would also be prudent to encourage studies such as the one advocated by the Secretary of Energy. Certainly Mr. Nye is not a power systems expert, nor have I seen him reference any when he is explain how such a transition can be accomplished. We should all be at least somewhat skeptical about the potential consequences of such a significant endeavor.

What I may be missing is the role of “optimism” which Mr. Nye assures us is a necessary ingredient for this transition. I’d seen hints of this before and perhaps what is happening is that far too many people obstinately reject any criticism regarding renewables because they believe that optimism is crucial if the planet is to be saved. Consequently no one should utter a disparaging word about any of the potential “preferred” renewable solutions. The view seems to be that we must get started now and we will work out the distracting details as we go along.

Perhaps this explains why those who view climate with extreme alarm often show no tolerance for criticism of renewable energy? Otherwise, why are grid experts not trusted? Grid experts have academic credentials, share a common body of knowledge, and continually build and alter their understandings based upon empirical evidence. Individually and collectively they work to be innovative and develop new approaches and challenge older perspectives. Grid experts have a proven track record of success. As I’ve argued before grid experts do not for the most part have a strong vested personal interest in the status quo. An ambitious, aggressive transfer to greater renewables would increase the demand and likely compensation for most all existing grid experts.

It’s almost as though it’s religious, not scientific.

Education, General Science, Mathematics, Media Criticism, Philosophy, Political Commentary, Popular Culture, Science And Society, Social Commentary, Technology and Society

Science As Religion

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Nice to see things like this at Slate. Everyone who “marched” yesterday should read it. Didn’t like the “science deniers” reference in last graf, though.

[Tuesday-morning update]

The “March For Science” failed, as demonstrated by its own signs:

Time to brush up on your social science, Science Guy. You too, Astrophysicist Dr. DeGrasse Tyson. You too, all ye faithful March for Science marchers, all ye believers in Truth, Science, and the Objective Way. Beware your own version of science denial. The idea has not developed “somehow”, “along the way”, that belief is informed by more than just what science says. Modern humans have always interpreted the facts based on deep values and meanings, affective filters imbuing the facts with an emotional valence that plays a huge part in determining what ultimately arises as our view of THE TRUTH.

Tyson and others are profoundly (and willfully) ignorant of philosophy. Belief in an objective reality is a critical element of the scientific method, but it’s just a belief, not the “truth.”

Business, Health, Mathematics, Media Criticism, Political Commentary, Science And Society, Technology and Society

AI In Medicine

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Self-taught systems beat MDs at predicting heart attacks:

All four AI methods performed significantly better than the ACC/AHA guidelines. Using a statistic called AUC (in which a score of 1.0 signifies 100% accuracy), the ACC/AHA guidelines hit 0.728. The four new methods ranged from 0.745 to 0.764, Weng’s team reports this month in PLOS ONE. The best one—neural networks—correctly predicted 7.6% more events than the ACC/AHA method, and it raised 1.6% fewer false alarms. In the test sample of about 83,000 records, that amounts to 355 additional patients whose lives could have been saved. That’s because prediction often leads to prevention, Weng says, through cholesterol-lowering medication or changes in diet.

To be honest, while it’s statistically significant, I’d have expected a bigger improvement than that. And it’s not clear how useful it is if the recommendations aren’t science based, as prescribing cholesterol-reduction or diet change generally aren’t.

Business, Economics, Mathematics, Media Criticism, Political Commentary

The National Debt

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The budget cuts don’t go deep enough:

The chart is brutally bipartisan. Debt increased under Republican presidents and Democratic presidents. It increased under Democratic congresses and Republican congresses. In war and in peace, in boom times and in busts, after tax hikes and tax cuts, the Potomac flowed ever deeper with red ink.

Our leaders like to talk about sustainability. Forget sustainable — how is this sane?

Yet when any politician hesitates before increasing spending, he’s portrayed as a madman. When Paul Ryan, R–Wis., offered a thoughtful plan to reduce the debt over decades, he was pushing grannies into the Grand Canyon and pantsing park rangers on the way out.

One of the many cons of Trump is that his budget cuts are going to solve the problem, when they don’t even scratch the surface. I’m not opposed to them, in general, mostly because I think they’re funding things that aren’t a federal responsibility, but it’s ludicrous to think they’ll have any significant fiscal effect. As long as he refuses to touch entitlements, we’re fiscally doomed.

Business, Economics, Law, Mathematics, Media Criticism, Political Commentary, Science And Society, Social Commentary, Technology and Society

Trump’s Climate EO

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Ths hysteria on this from the Left has been some combination of frightening and hilarious.

But in fact, as Roy Spencer points out, the (illegal) “Clean Power Plan” was literally going to increase poverty and kill people, while almost certainly having no discernible effect on climate.

Business, Economics, Education, General Science, Law, Mathematics, Media Criticism, Political Commentary, Science And Society, Social Commentary, Technology and Society

For Deluded Warmists

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A handy primer:

CO2 levels were steady during these wild swings and throughout the Holocene at roughly 280 parts per million (ppm) until 130 years ago when a stuttering increase to 400 ppm today began. In other words, Holocene temperature changes, and the wild variations that preceded them, were not linked to CO2 changes. This prompts the question: if CO2 changes did not drive these temperature shifts, why all the fuss about CO2 emissions?

The answer owes much to the complexity of the climate system and the wish for simple explanations to explain its variability and with which to make predictions. But climate is not simple. There are many interacting parts that make it a ‘coupled non-linear chaotic system’ in which small variations of any part can create big, unpredictable changes. In the search for something simple to blame, like increasing CO2 levels, this ‘coupled non-linear, chaotic’ nature of climate is often played-down, overlooked or ignored. Things like solar variations, ocean heat transfers, cloud cover and the like – things that may well be the main drivers of climate – seldom get the respect they deserve.

The effect of the sun, the sea and clouds on climate is known and accepted – the Gulf Stream being a well known example – but more precise knowledge suitable for computer models is a different thing altogether. But what can be said for sure, is that the sun, the sea and the clouds are all very important and CO2 is only one player in a big game, not the control knob on the Earth’s thermostat. It is true that CO2 contributes to the greenhouse effect, but its heating effect is small (when compared with water vapour, the main contributor) and drops off logarithmically as its concentration increases. The more there is, the less additional heating effect it has.

It’s almost as though there’s some sort of political agenda that has nothing to do with science or reality.

[Update a while later]

This is interesting: Pruitt doesn’t want to attempt to overturn the endangerment finding:

Pruitt, with the backing of several White House aides, argued in closed-door meetings that the legal hurdles to overturning the finding were massive, and the administration would be setting itself up for a lengthy court battle.

A cadre of conservative climate skeptics are fuming about the decision — expressing their concern to Trump administration officials and arguing Pruitt is setting himself up to run for governor or the Senate. They hope the White House, perhaps senior adviser Stephen Bannon, will intervene and encourage the president to overturn the endangerment finding.

Trump administration officials have not totally ruled out eventually targeting the endangerment finding. Conservative groups have petitioned the EPA to look at reopening it, one source said, and the agency may eventually be compelled to respond to the petition. Axios first reported the news of the petition.

“Getting rid of the Clean Power Plan is just not enough,” said Myron Ebell, the director of the Center for Energy and Environment at the Competitive Enterprise Institute and the former leader of Trump’s EPA transition team.

I agree. It was based on junk science. In fact, they should be trying to get a rehearing of Massachusetts versus EPA when they get Gorsuch on the court.

Business, Economics, Mathematics, Media Criticism, Philosophy, Political Commentary, Science And Society, Technology and Society

Science And Policy

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Words of wisdom from Daniel Sarewitz:

Whatever science you’re doing on a post-normal problem, it is always going to be incomplete, and it is always going to be subject to revision, and highly uncertain. It can be viewed from numerous scientific perspectives. So multiple scientific studies can come up with multiple results, so it leads to a profusion of truths that can be mobilized on behalf of different sets of values. Values and facts can pair up with each other in different ways.

One example I love is how everyone talks about how there’s a consensus on GMOs. Well there is consensus around a narrow part of the GMO issue, like there is a consensus around a narrow part of climate change. But the real problems have to do with the ‚what could be done?‘ questions. So for GMOs for example, when people say there is a consensus, what they mean is ‚we know they’re not a health risk‘. So I’ll accept it on health risk, I don’t have a problem with it. But then you say, ‚and we know that they’ll be an essential part of the economic future of Africa‘. Well, maybe that’s true — whose model are you using? What kind of data have you used to generate that? What are your assumptions? I mean anything dealing with projections of the future and claims about how the world is going to look, in a multi-variate, open system, are going to be subject to different people coming up with different claims and conclusions. And that’s exactly what happens.

And when you bring science into the political debate, you have to pick and choose which science you want to use. You have to match that with particular priorities about what policy problems you want to solve. I think science is really important, I think we want to be factual, I think we want to have a grip on reality and I think science can help us do that. But for problems where there are so many paths forward, so many competing values, the systems themselves are so complicated, I don’t think science is a privileged part of the solution.

…The post-normal science idea really does challenge the notion of science as a unitary thing that tells us what to do, PNS really says that we have to think of science in a different way in these contested contexts, and I don’t think most scientists want to go there. The deficit model puts them in charge: “we communicate the facts, you listen and take action.” So if the problem isn’t solved it’s not science’s problem. This is a self-serving superstition that the scientific community generally holds. And superstitions are hard to destabilize.

Over on Twitter, I’ve been having arguments with people about the proposed cut at the EPA, in which the budget for “protecting the climate,” is reduced to “only” $29M.

What in the hell does “protecting the climate” even mean?