“Infinity” means, quite literally, “without end.” Since humans could reflect, they have pondered infinity. Very likely, the first inklings of infinity occurred as the earliest humans contemplated the night sky replete with what seemed to be an infinite number of stars.
Having taught college math, I often talked with my students about “infinity,” but in a mathematical sense. For instance, we discussed infinite iterations, infinite limits, an infinite number of classes of numbers, the infinite number line, infinitesimal differences, infinitely large numbers, infinitely small numbers, the infinite decimal nature of constants such as “pi.”
