If I choose to impose individual blame for all past social ills, there will be no one left to like in some of the most fascinating periods of our his… - Stephen Jay Gould

If there is any consistent enemy of science, it is not religion, but irrationalism.

But, as we consider the totality of similarly broad and fundamental aspects of life, we cannot defend division by two as a natural principle of objective order. Indeed, the “stuff” of the universe often strikes our senses as complex and shaded continua, admittedly with faster and slower moments, and bigger and smaller steps, along the way. Nature does not dictate dualities, trinities, quarterings, or any “objective” basis for human taxonomies; most of our chosen schemes, and our designated numbers of categories, record human choices from a cornucopia of possibilities offered by natural variation from place to place, and permitted by the flexibility of our mental capacities. How many seasons (if we wish to divide by seasons at all) does a year contain? How many stages shall we recognize in a human life?

I would not choose to live in any age but my own; advances in medicine alone, and the consequent survival of children with access to these benefits, should preclude any temptation to trade for the past. But we cannot understand history if we saddle the past with pejorative categories based on our bad habits for dividing continua into compartments of increasing worth towards the present. These errors apply to the vast paleontological history of life, as much as to the temporally trivial chronicle of human beings. I cringe every time I read that this failed business, or that defeated team, has become a dinosaur is succumbing to progress. Dinosaur should be a term of praise, not opprobrium. Dinosaurs reigned for more than 100 million years and died through no fault of their own; Homo sapiens is nowhere near a million years old, and has limited prospects, entirely self-imposed, for extended geological longevity.