We look for the Secret - the Philosopher's Stone, the Elixir of the Wise, Supreme Enlightenment, 'God' or whatever. . . and all the time it is carrying us about. . . It is the human nervous system itself.
All qualified physicists, biologists, cosmologists and geologists agree, on the basis of massive, mutually corroborating evidence, that the earth's age is at least four billion years.