Archive for the 'Puzzles' Category

Perception and the Letter “F”

Posted by: Sam Eaton
Under: Puzzles, Quantum Thoughts
21 Feb 2008

Look at the text below and quickly count the number of “F”s you see.

Effs,  Optical Illusion, Perception

Some people see only four. Most see five. Some get six. Very few see seven,
which is the correct number. Really, go back & count again, slower this time.
We are not as observant as we think…

Pick a card any card.

My Favorite Veridical Paradox

Posted by: Sam Eaton
Under: Puzzles, Quantum Thoughts
29 Jun 2007

I love situations that challenge our “Common” Sense.”

Imagine you are dressed as a giant chicken and a crowd of strangers, each dressed more strangely than you, are all shouting their opinions, but the decision is up to you. Monty Hall himself has said that a car is behind one of the three curtains before you. Goats are behind the other two. After much crowd urging, you select curtain number 2. Instead of showing you what is behind your curtain, Monty shows you the goat behind curtain number 3 and then says, “Do you want to stay with curtain number 2 or do you want to switch to what is behind curtain number 1?”


Given that Monty knows Full Story »

Ignoring the Contrary

Posted by: Sam Eaton
Under: Puzzles, Quantum Thoughts
15 Jun 2007

One of the most frustrating exercises in human interaction can be arguing with someone who simply ignores or discounts any evidence that might contradict their opinion. It can be sobering to realize that we are all guilty of this faulty logic. We have a strong predisposition to what is called the Ubiquitous Confirmation Bias.The variation on the Watson Card Selection Task that follows is a wonderful illustration of this bias. Try it on yourself and share it with the loved ones you argue with the most: Each of the cards below has a letter on one side and a number on the other. Which two should be turned over to give you the most information on evaluating the following statement?

“If there is an S on one side, there is a 3 on the other”

Watson Card Selection Test

Integrating the Contrary:

75% choose the S and 3. They believe that if the S has a 3 and Full Story »