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| A little test illustrating a quick loss of objectivity. Step #1: try to figure out what is shown on the picture below. If you know the answer, click on the picture. 
Source: test from the book The design of everyday things  | |
| Page added on 4th January 2003, and updated on 1st April 2003. Copyright © 2002-2005 Marcin Wichary | Printable version | Contact | Site map |