Rick Perlstein

History does not repeat itself. Nor does it unfold in cycles. The real future is contingent, rich beyond imagining, a perennial gobsmack, tragic and glorious in equal measure; the pundits' future, spun of 'conventional wisdom,' is only a sucker punch to that common-sense fact.

In Ronald Reagan's case, he always bore with him this extraordinary ability to radiate confidence, optimism, clarity, a blitheness of spirit, in what other people saw as chaos. And after the 1970s, that was catnip.

It is only when you watch the dense mass of thousands of ants, crowded together around the Hill, blackening the ground, that you begin to see the whole beast, and now you observe it thinking, planning, calculating. It is an intelligence, a kind of live computer, with crawling bits for its wits.

By irreducibly complex I mean a single system composed of several well-matched, interacting parts that contribute to the basic function, wherein the removal of any one of the parts causes the system to effectively cease functioning.

The price of diamonds can vary greatly depending on size, cut, color, and other factors, including whether they have a history. But because of the rarity of blue boron diamonds, they often fetch more money than gems of similar quality.