Gould's book is superb in its own way and deserves five stars for eloquence, and half a star for stubborness. Gould is adamant for contingency in evolution, but the book's fascianting exploration of the Cambrian seeking the case for this contingency in evolution is the one great instance where the puzzle, still unsolved, suggests something different, perhaps the opposite. Surely the Cambrian is the geat counterevidence to claims for natural selection in evolution. It is impossible to not smell a rat here. Bizarre creatures of all sorts are virtually popping out of the Cambrian toaster with complete body plans and we are to believe this squares with Darwin's thesis. It simply isn't convincing. I don't buy it. Genomes don't arrive like this. Nonetheless, Gould's book raises important issues of the idea of progress, and of the nature of history that, while seemingly out of place, remain dialectically poised here at the edge of verification or refutation. Part of the problem with the idea of progress is that its ideological cast from its usage in nineteenth century culture forever makes it inappropriate for the description of evolution. Yet this is only really true if we can prove that natural selection operates exclusively to produce complexity. The Cambrian looks a tad like evolutionary progression, if not progress, as a result of directed process, type unknown. As to the nature of history, what do we know about it? To assume that it occurs in a purely contingent fashion is not true either, for we can see directionality in our own history, and a very spectacular kind at that (cf. World History and the Eonic Effect, John Landon, for this demonstration). So history isn't contingent. Evolution can be contingent in one way, and directed in another, like cars at a stop light, in a mixture of processes. Surely the Cambrian demands some radically new conception of evolution, and evolution taken as a whole. The rapid appearance of such coordinated body plans in such a short era simply does not square with randomness. The literature on the Cambrian suggests a form of paradigm hysteria, frantic to cover up the stark contradiction confronting Darwinists, 'here's an elephant but I can't see anything'. As to the future of these types and body plans,their dying out or survival--this proves very little. For if the Cambrian suggests intermittency, by whatever process, a future intermittency could return on surviving body plans for a new advance, a possibility strongly suggested, but to be sure not proven, by the evidence. For we see over and over the 'restarting' from a small subset, as indeed with man, a rapid morphing of a subset, within a subset, of the great apes. Thus we are confronted with something that is neither purely contingent, nor purely progressive. This book should be complemented with such books as Simon Conway Morris' Crucible of Creation, S. Kaufman's At Home in the Universe, a work on exobiology such as Here Be Dragons, and radical computations of genomic mutational statistics such as Independent Birth of Organisms, by Senapathy. This is a most provocative book, but it convinced me that evolution is directional, sorry.