” In all discussions of Nature we must remember the differences of scale, and in particular the differences of time-span. We are apt to take modes of observable functioning of the human body as setting an absolute scale. It is extremely rash to extend conclusions derived from observation far beyond the scale of magnitude to which observation was confined. For example, to exhibit apparent absence of change within a second of time tells nothing as to the change within a thousand years. Also no apparent change within a thousand years tell anything as to a million years ; and no apprent change within a million years tells anything about a million million years. We can extend this progression indefinitely. There is no absolute standard of magnitude. Any term in this progression is large compared to it’s predecessor and is small compared to it’s successor. “

– Alfred N. Whitehead