Philosophers, comedians, and tipsy birthday celebrants all...

Philosophers, comedians, and tipsy birthday celebrants all have proposed theories about why time seems to move increasingly swiftly as we grow older. But the most disconcerting rationale is not a theory. It is the undeniable realization that every day we live constitutes a smaller percentage of the accrued experience with which we awaken each morning, and therefore seems proportionately a smidgen quicker and smaller than the day before.