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20 of 21 people found the following review helpful:
3.0 out of 5 stars
The wild ideas make this novel worthwhile, April 2, 2001
Even in the world of hard science-fiction authors, Larry Niven is a bit peculiar. His ideas, while always grounded in the physical sciences and defensible, are frequently beyond any kind of normal, logical leap. Niven's longtime collaborator Jerry Pournelle ("The Mote in God's Eye", among others) has been quoted as saying that he writes with Niven because Niven "is the crazy one.""Ringworld" is Niven's most enduring work, but "Protector" is, in some ways, a better example of his talent for amazing logical leaps. Niven has described the premise this way: "Every symptom of aging in man is an aborted version of something designed to make us stronger. In particular, we lose intelligence with age because we were supposed to grow more brain tissue, when the thymus gland dissolves around age 42-45." In "Protector," this thesis is demonstrated by the appearance of the first alien species to contact humanity: the Pak. We learn that Earth was a failed Pak colony; homo habilis is the Pak breeder stage. At about middle age, homo habilis was supposed to eat a certain plant that would trigger the change to the sexless, armored, highly intelligent protectors. Pak protectors have other notable traits as well, some of which may come as a surprise to those used to more traditional tales of immortality. This is an early Niven story, and plotting was not his strong point until relatively recently. Mainly the plot is a thinly-veiled excuse to learn more about the Pak. Of the characters, only centegenarian Lucas Garner and belter Jack Brennan seem to be more than placeholders. The ideas in the novel, however, make up for many of the more obvious flaws. I'm not qualified to comment on the scientific plausibility of Niven's ideas. I will note that some linguists have ridiculed Niven's use of "Pak" and "Phssthpok" as words invented by a species with a hard beak for a mouth, and no lips. More recent fossil discoveries have suggested that our evolutionary heritage may be far more complex than was known in 1973, but Niven can hardly be blamed for not anticipating new scientific discoveries in the interim. Other reviewers have noted that this novel was later referenced heavily by Niven's "Ringworld" novels, particularly "Ringworld Engineers" and "Ringworld Throne." You don't need to read this one to enjoy the Ringworld novels, but it's definitely more fun that way. For Niven fans, I recommend this book without hesitation. For those who haven't yet met Larry Niven, pick up "Ringworld" first.
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