Delight Springs

Thursday, August 12, 2021

Rationality--the book, the course, the sentiment

 The natural sequel to Enlightenment Now, the course and the book, is Rationality. The book is due next month, the MALA course (I've just been assured) next summer. 

Can reading a book make you more rational? Can it help you understand why there is so much irrationality in the world? These are the goals of Rationality, Steven Pinker’s follow-up to Enlightenment Now. In the 21st century, humanity is reaching new heights of scientific understanding—and at the same time appears to be losing its mind. How can a species that developed vaccines for Covid-19 in less than a year produce so much fake news, medical quackery, and conspiracy theorizing? Pinker rejects the cynical cliché that humans are an irrational species — cavemen out of time saddled with biases, fallacies, and illusions. After all, we discovered the laws of nature, lengthened and enriched our lives, and discovered the benchmarks for rationality itself. Instead, he explains that we think in ways that are sensible in the low-tech contexts in which we spend most of our lives, but fail to take advantage of the powerful tools of reasoning our best thinkers have discovered over the millennia: logic, critical thinking, probability, correlation and causation, and optimal ways to update beliefs and commit to choices individually and with others. These tools are not a standard part of our educational curricula, and have never been presented clearly and entertainingly in a single book—until now. Rationality also explores its opposite: how the rational pursuit of self-interest, sectarian solidarity, and uplifting mythology by individuals can add up to crippling irrationality in a society. Collective rationality depends on norms that are explicitly designed to promote objectivity and truth. Rationality matters. It leads to better choices in our lives and in the public sphere, and is the ultimate driver of social justice and moral progress. Brimming with insight and humour, Rationality will enlighten, inspire, and empower. stevenpinker.com

Mrs. Pinker, aka Rebecca Goldstein, offers a short reading list (including her husband's last book) of the best books on reason and its limitations. Maybe we'll want to look at some Hume, or even George Eliot.

It being my course, of course, we'll also look at "The Sentiment of Rationality."

When enjoying plenary freedom either in the way of motion or of thought, we are in a sort of anaesthetic state in which we might say with Walt Whitman, if we cared to say anything about ourselves at such times, "I am sufficient as I am." This feeling of the sufficiency of the present moment, of its absoluteness,—this absence of all need to explain it, account for it, or justify it,—is what I call the Sentiment of Rationality. As soon, in short, as we are enabled from any cause whatever to think with perfect fluency, the thing we think of seems to us pro tanto rational.

Whatever modes of conceiving the cosmos facilitate this fluency, produce the sentiment of rationality. Conceived in such modes, being vouches for itself and needs no further philosophic formulation. But this fluency may be obtained in various ways; and first I will take up the theoretic way... Wm James, SR (1896)

"Perfect fluency" sets the bar high, I generally settle for modestly confident fallibility when I think my thinking is right. Does rationality in fact come down, moment to moment, to a feeling of present sufficiency? I have a feeling Pinker won't think so. It'll be fun to think about over the next several months, and to talk about with MALA students next summer.

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Postscript: And the New Yorker article -- "Why Is It So Hard to Be Rational?" The real challenge isn’t being right but knowing how wrong you might be...




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