Because years are numbered consecutively, it is very
hard not to believe in linear progress. Yet nothing in
nature supports such a belief. We grow and change,
certainly, but only to diminish and die. This is as true
of a star as it is of an ant. The theme of the cosmos is
not progress but renewal—the same thing renewed
over and over again in microscopically differing forms.
Nothing is going anywhere. Everything is always here.