Welcome to Musing Interruptus. What a difference a day makes. Can you think about all the changes that happen in just one day? Some are fundamental and life-altering, massive changes that shake you to the core. Other changes might be imperceptible, soft, gradual… not necessarily less life-altering. Today, it is all about perception and the awesome power behind it. How wonderful a problem can be understood in so many different ways, perceived from different places and through glasses, goggles, telescopes, sounds, touch, and smell. Intuition, too. Experience, as well. The way we see things is sometimes reduced to, a glass half empty, or half full. No sir, there is more to it, I want to know the chemical composition of the liquid contained in the glass. Madam, could you tell me if it is sweet? What if it is sour? You there! Did you know glass ...