Category Archives: Rationality

Layish

Posted on September 27, 2017 by

This story is implicitly referred to in the 2008 opening post of this blog. ———– It was high time to raise the level of the discussion, I thought. Princeton, Fall 1995. We were a group of mathematicians at the IAS … Continue reading →

Posted in Combinatorics, Computer Science and Optimization, Games, Mathematics to the rescue, Philosophy, Rationality, Sport, Taxi-and-other-stories | Tagged , , | 6 Comments

שינוי 2015 – שאלה לנתניהו

Posted on March 7, 2015 by

בנימין נתניהו, מדוע פרקת את הממשלה ערב מאבק גורלי בנושא קיומי עם נשיא ארצות הברית   זה לא מסתדר העניין הזה: זה הרי חוסר אחריות נוראי לפרק את הממשלה ממש לפני עימות מכריע על נושא קיומי, אז מה הסיבה לכך זה כמו … Continue reading →

Posted in Elections 2015, Rationality | Tagged | 12 Comments

Ehud Friedgut: Blissful ignorance and the Kahneman-Tversky paradox

Posted on October 2, 2014 by

Tversky, Kahneman, and Gili Bar-Hillel (WikiPedia). Taken by Maya Bar-Hillel at Stanford, summer 1979.   The following post was kindly contributed by Ehud Friedgut. During the past week I’ve been reading, and greatly enjoying Daniel Kahneman’s brilliant book “Thinking fast … Continue reading →

Posted in Guest blogger, Rationality | Tagged , , | 11 Comments

Another Forgotten Bet: Is Don Zagier About to Owe Me 1000 Shekels For The Proof of the ABC Conjecture?

Posted on March 28, 2013 by

      Like everybody else I heard with great interest the news about the attempted solution of the ABC conjecture by Shinichi Mochizuki. (See, e.g.,  here, here, here, and here.) I did not think that this has much to with me … Continue reading →

Posted in Number theory, Rationality | Tagged , , | 8 Comments

Election Day

Posted on January 22, 2013 by

Vox populi, vox dei! Today is the general election day in Israel. This is an exciting day. For me election is about participation much more than it is about influence and I try not to miss it.  This is why … Continue reading →

Posted in Rationality, Updates | Tagged | 4 Comments

Angry Bird Skepticism

Posted on December 10, 2012 by

Lenore Holditch is a freelance writer. Here is what she wrote to me: “I love learning about new topics, so I am confident that I can provide valuable content for your blog on any topic you wish, else I can … Continue reading →

Posted in Games, Rationality | Tagged , , | 1 Comment

The Privacy Paradox of Rann Smorodinsky

Posted on December 5, 2012 by

   The following paradox was raised by Rann Smorodinsky: Rann Smorodinsky’s Privacy Paradox Suppose that you have the following one-time scenario. You want to buy a sandwich where the options are a roast beef sandwich or an avocado sandwich. Choosing … Continue reading →

Posted in Games, Philosophy, Rationality | Tagged , , | 17 Comments

Test Your Intuition (11): Is it Rational to Insure a Toaster

Posted on February 28, 2010 by

Here is a question from last year’s exam in the course “Basic Ideas of Mathematics”:   You buy a toaster for 200 NIS ($50) and you are offered one year of insurance for 24 NIS ($6).   a) Is it … Continue reading →

Posted in Probability, Rationality, Teaching, Test your intuition | Tagged , | 18 Comments

What can the Second Prize Possibly be?

Posted on July 21, 2009 by

You are guaranteed to win one of the following five prizes, the letter says. (And it is completely free! Just 6 dollars shipping and handling.) a) a high-definition huge-screen TV, b) a video camera, c) a yacht, d) a decorative … Continue reading →

Posted in Mathematics to the rescue, Rationality | Tagged , , | 7 Comments

Chess can be a Game of Luck

Posted on July 5, 2009 by

Can chess be a game of luck? Let us consider the following two scenarios: A) We have a chess tournament where each of forty chess players pay 50 dollars entrance fee and the winner takes the prize which is 80% … Continue reading →

Posted in Controversies and debates, Economics, Games, Law, Probability, Rationality | Tagged , , , , , | 43 Comments