Science Salon

In his new book, The Case Against Reality: Why Evolution Hid the Truth From Our Eyes, the U.C. Irvine cognitive scientist Dr. Donald Hoffman challenges the leading scientific theories that claim that our senses report back objective reality. How can it be possible that the world we see is not objective reality? And how can our senses be useful if they are not communicating the truth? Hoffman argues that while we should take our perceptions seriously, we should not take them literally. His evolutionary model contends that natural selection has favored perception that hides the truth and guides us toward useful action, shaping our senses to keep us alive and reproducing. We observe a speeding car and do not walk in front of it; we see mold growing on bread and do not eat it. These impressions, though, are not objective reality. Just like a file icon on a desktop screen is a useful symbol rather than a genuine representation of what a computer file looks like, the objects we see every day are merely icons, allow