Today’s bedrock is tomorrow’s quarry. Yesterday’s science is today’s folly-filled object lesson. Check out these one-time firm-beliefs: In the not-too-distant past, fever, plague, vomiting, menstrual ...

The philosophical area of metaphysics asks the question: What is the nature of reality? Is there an objective world out there, and can the mind grasp that? To assist you, the reader, in determining ...

Picture an apple, any apple. As long as you don’t have aphantasia—the inability to visualize things in your mind’s eye—this suggestion triggers brain activity that’s surprisingly similar to what ...