An Afternoon in Early Autumn
I think it was the late science writer Stephen Jay Gould who coined the term “deep time” for the vast panorama opened up to human eyes by the last three hundred years or so of discoveries in geology and astronomy. It’s a useful label for an even more useful concept. In our lives, we deal with time in days, seasons, years, decades at most; decades, centuries and millennia provide the yardsticks by which the life cycles of human societies—that is to say, history, in the usual sense of that word—are traced.
Both these, the time frame of individual lives and the time frame of societies, are anthropocentric, as indeed they should be; lives and societies are human things and require a human measure. When that old bamboozler Protagoras insisted that “man is the measure of all things,” though, he uttered a subtle truth wrapped in a bald-faced lie.* The subtle truth is that since we are what we are—that is to say, social primates whow have learned a few interesting tricks—our capacity to understand the cosmos is strictly limited by the perceptions that human nervous systems are capable of processing and the notions that human minds are capable of thinking. The bald-faced lie is the claim that everything in the cosmos must fit inside the perceptions human beings can process and the notions they can think.
(*No, none of this has to do with gender politics. The Greek language, unlike modern English, had a common gender-nonspecific noun for “human being,” anthropos, which was distinct from andros, “man,” and gyne, “woman.” The word Protagoras used was anthropos.)
It took the birth of modern geology to tear through the veil of human time and reveal the stunningly inhuman scale of time that measures the great cycles of the planet on which we live.
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