(Roughly) Daily

“As a rule of thumb I say, if Socrates, Jesus and Tolstoy wouldn’t do it, don’t”*…


This is the age of big data. We are constantly in quest of more numbers and more complex algorithms to crunch them. We seem to believe that this will solve most of the world’s problems – in economy, society and even our personal lives. As a corollary, rules of thumb and gut instincts are getting a short shrift. We think they often violate the principles of logic and lead us into making bad decisions. We might have had to depend on heuristics and our gut feelings in agricultural and manufacturing era. But this is digital age. We can optimise everything.

Can we?

Gerd Gigerenzer [above], a sixty nine year German psychologist who has been studying how humans make decisions for most of his career, doesn’t think so. In the real world, rules of thumb not only work well, they also perform better than complex models, he says. We shouldn’t turn our noses up on heuristics, we should embrace them…

Why simple rules of thumb often outperform complex models: “Gigerenzer’s simple rules.”

* John Gardner


As we extrapolate, we might spare a thought for Marie Jean Antoine Nicolas de Caritat, Marquis of Condorcet; he died on this date in 1794.  A philosopher, mathematician, and early political scientist, he was a rationalist (and biographer of Voltaire) who advocated a liberal economy, free and equal public instruction, constitutionalism, and equal rights for women and people of all races.  He was a formulator of the Enlightenment ideas of progress and of the indefinite perfectibility of humankind.  And with his wife (and intellectual partner) Sophie de Grouchy, he hosted a salon that attracted foreign dignitaries and intellectuals including Thomas Jefferson, Thomas Paine, and Cesare Beccaria.  But he may be best remembered for the Condorcet method of voting, in which the tally selects the candidate who would beat each of the other candidates in a run-off election.




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