Niagara Falls

"The sun, with all those planets revolving around it and dependent on it, can still ripen a bunch of grapes as if it had nothing else in the universe to do."
-Galileo

Niagara Falls have been tumbling and thundering for thousands of years without missing a beat. Today the great waterfall will plough on, regardless of societal changes and utterly careless of humble human observation.
Spouse and I- and I would wager most visitors to the landscape- half expected the flood to run silent as dusk approached, rather like somebody turning a tap to end the spectacle. Most tourist attractions are short-lived and are run according to popularity- so the thought was not an irrational one.
In an age of deficient attention span and exhibitions of a transient nature, it was gratifying to be a witness to Niagara Falls: the show will not end because tourists return to their hotels for the night or because the season trickles to a close. The white waves will crash and collide with one another through night and day, century after century: if an interested party happens to be within sight, so much the better, but we humans are incidental to the occasion.
Rather humbling, I might say.