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An averaged form of Chowla’s conjecture

Kaisa Matomaki, Maksym Radziwill, and I have just uploaded to the arXiv our paper “An averaged form of Chowla’s conjecture“. This paper concerns a weaker variant of the famous conjecture of Chowla (discussed for instance in this previous post) that as for any distinct natural numbers, where denotes the Liouville function. (One could also […]

Jane Austen vs. Karl Popper; Lee advances

For yesterday’s contest I’ll have to go with this comment by Nuthin: This series of posts is so tedious that I’m considering removing this blog from my RSS feed altogether. Stewart Lee is a master of hecklers. In a lot of his work he pretty much invites people to heckle, he antagonizes his audience, etc. Show More Summary

New time unit needed!

We need a time unit that’s bigger than a minute but smaller than an hour. I thought of it when writing this comment in which I referred to “2100 valuable minutes of classroom time” during the semester (that’s 75 minutes per class, twice a week, for 14 weeks). Show More Summary

March Madness and Worker Productivity

The NCAA men's basketball tournament starts this week and with it we get the annual estimate of lost wages paid to distracted and unproductive workers. This year, according to calculations by Challenger, Gray & Christmas, the cost could reach as high as $1.9 billion. How accurate is that number?

Sigmund Freud vs. Stewart Lee; Dick advances

Yesterday‘s thread was won by Slugger, who wrote: I accidentally swallowed a stelazine capsule and have seen that Grandma Moses is in fact a reptilian lifeform without the ability to vocalize. My vote goes to PKD. Where did that light switch come from, anyway? I could’ve sworn it was a pull cord.... Show More Summary

The 1980 Math Olympiad Program: Where are they now?

Brian Hunt: He was the #1 math team kid in our team (Montgomery County, Maryland). I think he came in first place in the international olympiad the next year (yup, here’s the announcement). We carpooled once or twice to county math team...Show More Summary

Common Elements Of Three Arrays

We have another interview question today. There are several different ways to approach this task, so it makes for an interesting exercise: Given three arrays of integers in non-decreasing order, find all integers common to all three arrays. Show More Summary

The Best of Pi Day Poetry

The Numbers on Saturday asked readers to send along their best attempts at a pi-ku in honor of Pi Day. After sifting through scores of submissions, from the silly to the sublime, we're pleased to present our favorites

Grandma Moses vs. Philip K. Dick (2); Gandhi advances

Yesterday’s most relevant comment came from Ben: Gandhi would have a far more interesting things to say about the current state of world politics, etc. The issues that Gandhi was known for (de-colonization, passive resistance) remain immensely relevant but with very different parameters than the 1920’s-1940’s. Show More Summary

The State of the Art in Causal Inference: Some Changes Since 1972

For the first issue of the journal Observational Studies, editor Dylan Small will reprint William Cochran’s 1972 article on the topic (which begins, “Observational studies are a class of statistical studies that have increased in frequency and importance during the past 20 years. Show More Summary

On deck this week

Mon: The State of the Art in Causal Inference: Some Changes Since 1972 Grandma Moses vs. Philip K. Dick (2) Tues: The 1980 Math Olympiad Program: Where are they now? Sigmund Freud vs. Stewart Lee Wed: New time unit needed! Jane Austen vs. Show More Summary

Mohandas Gandhi (1) vs. Mother Teresa (4); Tolstoy advances

For yesterday, we didn’t get much in the way of comments, so I’ll have to go with this comment by Jonathan: Hobbes is the Arnold Schwarzenegger of philosophers. Any time someone feels he’s been killed off, he’ll be back. Tolstoy is the Buster Keaton of novelists. Show More Summary

“In general I think these literatures have too much focus on data analysis and not enough on data collection.”

Mike Zyphur pointed me to an article appearing in Psychological Bulletin with a meta-analysis of ovulatory cycle effects: Title: Do Women’s Mate Preferences Change Across the Ovulatory Cycle? A Meta-Analytic Review Authors: Gildersleeve,...Show More Summary

Thomas Hobbes vs. Leo Tolstoy

First off, I just want to say I made a mistake yesterday dropping Alan Turing in favor of Ed Wood. As Zbicyclist put it, “Ed Wood’s best thoughts are probably on the screen.” And that’s not good at all! So, sorry for eliminating one of the exciting speakers from the list. Show More Summary

They don’t fit into their categories

I was reading the newspaper today and came across an article entitled, “Black Holes Inch Ahead to Violent Cosmic Union.” No big deal, except that it was in the National section. Not the International. This reminded me of other examples...Show More Summary

Celebrating Pi Day, With a Pi-Ku

Pi Day--celebrated on 3/14, or the month/date format that coincides with the numerals 3.14 that begin pi--is the celebration of the irrational number that represents the ratio of a circle's circumference to its diameter. Come celebrate with us and write your own pi-ku.

Split Octonions and the Rolling Ball

Watch a rolling ball illustrate an exceptional incidence geometry!

Behind the Numbers: Drilling Down on Illegal Immigration

The Center for Migration Studies this month unveiled a new database of illegal immigrants broken down at national, state and sub-state levels. Among the findings at a national level: About two-thirds of unauthorized residents have access to a computer or the Internet and 55% speak English well or very well.

Simone de Beauvoir (2) vs. Chris Rock (3); Wood advances

You guys keep making it tough for me! Yesterday I was strongly rooting for Turing—really, I have no interest in seeing Ed Wood speak at all, and if he ever makes into the finals against John Waters he’ll just get destroyed—but Anonymous wins the thread with the very first comment: I vote against Turing — […] The post Simone de Beauvoir (2) vs. Show More Summary

Using to predict y: What’s that all about??

Toon Kuppens writes: After a discussion on a multilevel modeling mailing list, I came across this one-year-old blog post written by you. You might be interested to know that in social psychology, taking the aggregate outcome variable...Show More Summary

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