A nice read. The book boasts 84 paradoxes (with 10 new ones having been added for this edition). Each paradox is discussed and resolved— or explained why it cannot be resolved— all within about three or four pages. Most of the classic paradoxes are here, such as 'Achilles and the Tortoise,' 'The Prisoners Dilemma,' 'The Liar,' and 'The Chicken and the Egg’ (to name just a few).
I wanted to read this book to check out the discussion of the Monty Hall Problem (here called the Monty Hall Paradox). Named after the game show host, the problem involves a contestant who is given three doors to choose from. The contestant is told that behind one of the doors is the coveted prize, and that there nothing behind the other two doors. The contestant then chooses one of the doors that she believes the prize is behind. Monty Hall would then choose another door and show that it had nothing behind it. The game show host then offers the contestant the option to switch doors or keep the door she chose initially.
The paradox or problem then arises: should the contestant keep the door she initially chose or switch? Stated another way: does contestant have a higher probability of getting the prize by keeping the door she initially chose or by switching?
The solution was famously proposed by the columnist Marilyn vos Savant, who writes a weekly column for Parade magazine called "Ask Marilyn." Back in the day, vos Savant was listed as the person having the highest IQ by the Guinness Book of World Records. Vos Savant told readers that the contestant should always switch.
The solution brought the ire (and letters) of many a PhD in mathematics. Even the famous number theorist, Paul Erdos, (bio: The Man Who Loved Only Numbers) refused to believe that to switch doors gives a higher probability of winning the prize (Erdos was finally convinced of it when shown a computer program using the Monte Carlo method, which ran repeated trial simulations).
This chapter, however, smacks of sexism. Chapters on other paradoxes seem to go out of their way to mention the history of the paradox, who came up with the paradox, and/or how the discussion of it evolved. The author, Michael Clarke, doesn't even mention vos Savant by name— only the column 'Ask Marilyn.' If one knows a little about the history of this problem and the invective targeted at vos Savant, one can't help but feel that Clark has been dismissive of vos Savant's prowess in the whole affair.
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Finally, the paradox of the 'Chicken and Egg' is discussed using basics from biology and the theory of evolution. It is satisfactorily resolved and one goes away knowing what came first: the chicken or the egg (Sorry, you'll have to read the one and a half page solution on your own).
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