How gravity turns me upside down

A personal essay on ageing and gravity. Eventually, it brings everyone down. K.C. Cole reflects on how her favourite force is literally belittling, but is also inspiring her with new ways to get high. "Earth-bound bipeds that we are, our minds did not evolve to grasp such concepts as curved four-dimensional spacetime, so no amount of math or analogy is going to make it intuitive. Instead, we rely on everyday experience, looking 'down' at our feet and 'up' at the sky, even though 'down' isn’t a place or even a direction beyond our parochial patch of ground."