The Speed of Time
by Jay Lake
“Light goes by at the speed of time,” Marlys once told me.
That was a joke, of course. Light can be slowed to a standstill in a photon trap, travel on going nowhere at all forever in the blueing distance of an event horizon, or blaze through hard vacuum as fast as information itself moves through the universe. Time is relentless, the tide which measures the perturbations of the cosmos. The 160.2 GHz hum of creation counts the measure of our lives as surely as any heartbeat.
There is no t in e=mc2.
I’d argued with her then, missing her point back when understanding her might have mattered. Now, well, nothing much at all mattered. Time has caught up with us all.