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Cole's avatar

[TO GRAYSON'S OLD COMMENT]:

I really appreciate this reflection, and I’d love to see a follow-up article exploring these themes further.

I wholeheartedly agree with the idea that the mind functions like a muscle: with deliberate practice and progressive exposure to intellectual stress, we can train certain cognitive abilities— in logic and abstraction, but also in care, consideration, and philosophical charity.

One only has to look at mathematics to see that this kind of skill is both objective and can be rigorously developed with the right sort of practice. The interesting challenge, of course, is what happens when we try to apply that kind of reasoning beyond math—to metaphysics, ethics, politics, or the philosophy of mind. I’d argue that, just as with mathematical skill, repeated deliberate exposure wrestling through such ideas matters.

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That said, your comment raises a deep tension about deference to philosophical expertise. On the one hand, we must learn from those more advanced—just as a novice weightlifter would be wise to listen to a coach. But even if Arnold Schwarzenegger has the best body in the gym, he still can’t lift weights for me. If I want strength, I have to lift the weights myself. Likewise, no philosopher can do the thinking for you. Everyone has to develop their own epistemic (and moral) fitness. Developing such fitness in moral reasoning on a grand scale could be said to be the central aim of philosophy club.

But if we accept this analogy—philosophy as intellectual athletics—then it's possible the goal shouldn’t just be to cultivate casual interest but to build a community of elite practitioners. Not elite in the sense of credentials, but in skill, dedication, and practice. -- in the sense that a winning athlete is elite, and it doesn't matter what school they went to, or how rich or poor their father is.

Such an elitist atmosphere, though, cuts at one of the most beautiful things about our philosophy club currently: it's democratic and open-minded spirit. It's the classic tension between populism and elitism, but this time, mediated through philosophy. So I'm interested how you see this resolving.

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Thanks again for opening the conversation! It's an important one

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The Water Line's avatar

This article makes a statistical error. It implies that an "aggregate" measure necessarily has greater predictive power than each of its component measures. For example, the author says:

"Stated more formally, the predictive power of a perfect aggregate of many small direct signs will be of necessity greater than any of the aggregated signs considered individually, even if the aggregate sign is indirect."

The author concludes that one's astrological sign would be a better predictor of health outcomes than one's geography, the climate in one's area, the season, etc.

To see why this is a mistake consider an analogy:

A group of high school students takes the SAT. Answers to each individual question of the SAT are correlated with being admitted to a college. That is, if a student gets Question 1 correct, they are more likely to be admitted, and likewise with Question 2 and Question 3 and so on. Does it follow that the overall SAT score is a better predictor of getting into the college than every individual question is?

The correct answer is no!

It’s entirely possible that one specific question, say Question 3, is *perfectly* correlated with being admitted, while at the same time, the overall SAT score might only modestly predict being admitted. The reason is because the overall SAT score would also be composed of answers to other questions that are imperfectly correlated with college admission, and these other questions could introduce an arbitrarily large amount of noise into the prediction.

So even if astrological signs are 1) correlated with variables like one's geography, the climate in one's area, the season, etc. and 2) these other variables are correlated with health outcomes, it doesn't follow that astrological signs are better predictors of health outcomes than any of these variables taken individually.

And indeed, one recent study examined the predictive power of astrological signs on a host of life outcomes (e.g. life satisfaction, suicidality, BMI, household income, number of deep emotional connections). The authors conclude that astrological signs "had no predictive accuracy whatsoever."

https://www.clearerthinking.org/post/how-accurate-are-popular-personality-test-frameworks-at-predicting-life-outcomes-a-detailed-investi

So in sum, the problem with astrology is not merely that there is no causal mechanism by which the positions of stars would affect our destinies. It's that there is no correlation to begin with!

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