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dryd | 4 years ago

Unfortunately the title makes a small logical leap.

From the article: "Her team combined data from different species in different places. Since they have little in common apart from living on a warming planet, she says, climate change is the most plausible explanation."

While climate change may indeed be the most plausible explanation, this headline seems to transform from "most plausible" into a causal link.

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Cats_In_Love|4 years ago

Probability is fundamentally all we have in science. The only distinction is in the level of confidence use in inference of the data. 95% is fairly typical though particle physics requires and impressive level >99.9999%

grapist420|4 years ago

even if one accepts this, which I don’t (what is the probability of mathematics being a quantum ultrafinitist glandular endomorphism of classical electromagnetism? What is the probability that the sun rises tomorrow? What’s the probability the standard model is true? It’s nonsense.) you could totally interpret what he said as “original paper claimed 20-80% confidence, economist article assumed 95%” and that would be a reasonable probabilistic reading

nlitened|4 years ago

I understand what you’re saying, but I have to highlight a mistake.

In science, what you’re talking about is not a “probability of being right”, but a probability of not getting the same experimental results completely randomly, without any underlying cause. You still might have 0% probability of being right. With “95% confidence” there still could be no measured effect whatsoever, you just made the same experiment multiple times and randomly finally got big enough random numbers to get you 95% confidence.

It’s not a nitpick, it is a serious mistake that 95% social scientists make.

titzer|4 years ago

There's a lot of global changes that could be underlying contributing factors. Global air and water pollution, pesticides, microplastics. Things that were regional that are becoming global as Earth's massive interconnected recycling systems chug on our waste. The entire planet has traces of radioactive isotopes that were essentially non-existent before nuclear testing. Light pollution. Global insect apocalypse. You can create a list and rank them by the potential contributions. I didn't read the whole article because paywall, but there are lots of things that are all globally different than a century ago.

baybal2|4 years ago

> this headline seems to transform from "most plausible" into a causal link.

One of big alternative explanations why animals/humans get smaller closer to tropics is not because of lack of food, but because of too much of it

The quicker the species can grow to maturity, the more food calories can be spent for procreation.

AlotOfReading|4 years ago

Why do you think this is a relevant critique to the article/paper? The study is about a global trend in increasing appendage size within populations due to warming ("Allen's rule"), not whole body size ("Bergmann's rule"). Secondly, the role of food is acknowledged as a potential factor in the section on causality, but justifiably rejected as the sole factor.