Quantum mechanics is one of the most successful theories in science — and makes much of modern life possible. Technologies ranging from computer chips to medical-imaging machines rely on the ...

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 ...

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 ...