Please note: This is a companion version & not the original book. Sample Book Insights: #1 Our eyes and all of our other senses are reliable guides because they were created by evolution to reveal the truth about the world. But the truth is not what we think it is. Our perceptions of snakes and apples, and even space and time, do not reveal objective reality. #2 The purpose of a desktop interface is to show you the truth of the computer, but this metaphor is wrong. The purpose of an interface is to hide the truth and show simple graphics that help you perform useful tasks. #3 Our sense of beauty is a clear example of how our perceptions evolved to report truths about objective reality. Our senses do not simply report that this or that perception is wrong; they cannot be right, because they are couched in the language of our perceptions. #4 The game of life is played by using our senses to report the fitness payoffs and errors in these reports. Our senses use error-correcting codes to detect and correct errors. Spacetime is just a format our senses use to report fitness payoffs and to correct errors in these reports.