By G.D. Maxwell
Evolution and erosion used to seem like such simple concepts. People evolved; the planet eroded; life proceeded apace. Simple.
But someone, maybe Albert Einstein though given the journalistic hangup about getting quotes right Im not about to put my neck on the line and say it was him said something like, "All major breakthroughs occur at the borders of known science when some smart cookie bridges the gap between whats known in two different disciplines." Of course, if, and Im not stating it as a fact, but if it was Einstein who said something like that, he said it with something like an Austrian accent which is devilishly hard to get across in print. So use your imagination.
I wasnt thinking particularly about either earth science or human evolution the day I finally grasped both the profundity of that idea and the oversimplification of my understanding of the difference between erosion and evolution. I was eating lunch hanging from a rope dangling more feet above the ground than I ever want to fall on a mountain. Eating lunch under those circumstances is more likely to lead to indigestion and numb legs than it is to deep thought but then, it was an extraordinary day.
A loud "crack", reminiscent of thunder and lightning occurring so close to where you are theres no discernible difference in timing between the two, broke my monotonous, cowlike grazing and I spun around in my sling to witness, for the first and only time ever, erosion taking place in real time. A flake of granite the size of a small subdivision, having not moved for maybe a couple of million years, secure in its relationship with the other granite around it since before tectonic forces thrust it up off prehistoric seabed, chose that precise moment to let go.
It slid down the face of a well-climbed route on a snaggletooth spire of rock called, unimaginatively, The Spire, broke into innumerable smaller pieces when it met the rocky approach slope below, dislodged several times its bulk and weight in other rocks, trees and earth, and tumbled ass over teakettle down the draw for a couple of hundred yards. It all took maybe 15 seconds, maybe 20, and in the billowing cloud of dust it threw up, silence returned to the mountain. Silence punctuated only by an insignificant cry of, "Hey Zeus Christo!"
When tranquility returned and the dust had settled, there was a new, boulder-strewn approach route to that aspect of The Spire. There were several new, unclimbed routes on its final third. In climbing terms, the mountain had, I realized, evolved. The weathering process of erosion had created new, exciting opportunities. Id be ready to accept the challenge as soon as I changed my pants.