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'Half Life' Succeeds by Breaking Rules
By Chris Aylott

Special to space.com

posted: 06:20 pm ET
23 September 1999

Book Review: 'Half Life' Succeeds by Breaking Rules Half Life defies all the rules of the modern novel, and succeeds brilliantly. Maybe it's because Hal Clement's so good at following the rules he makes for himself.

Two centuries from now, humanity is slowly dying out, beset by new diseases and variants of old ones that spring up faster than medical science can find cures. To get ahead of the plague on Earth, scientists looking for clues to early life processes send a long-shot mission to Titan -- 50 men and women, most already infected with terminal diseases -- to study the chemistry of Saturn's largest moon.


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Hal Clement

It's a pure man-against-nature story, a scientific mystery in which human conflicts play no part. There are no mess-room tirades, no star-crossed romances, no saboteurs lurking near the engine.

Clement is focussed on the exploration, underlining the isolation of the astronauts from Earth by putting each character in independent living quarters under medical quarantine, where they never touch.

He underlines it again by skipping over the journey to Titan, a trip that's worth a book in itself -- as Stephen Baxter recently proved by writing Titan.

Instead, after a brief prologue, Half Life begins with the characters hard at work and just starting to make discoveries.

Whether you find their discoveries exciting depends on how excited you are by science, but I like to think that the typical space.com reader will be in for a treat.

A speculative expert

Clement is an expert in the field of building worlds and, with experience reaching back 50 years, he's possibly the best in the world. At conventions, he teaches people how to take current science, add speculation, then carefully model the consequences and find the story in them.

He is a master of detail, and when he's done developing a world he can tell you exactly how it works, from the way a small pond will ripple to the ebb and flow of planetary weather cycles.

His vision of Titan is stark and forbidding, in some ways even more inimical to humans than outer space, but it lives and breathes. Every detail the characters uncover adds to our understanding of this world, leaving no need for human drama -- it would be a distraction, like gaudy beach tourists on a New England seascape.

Not that humans don't have a place in the book. We need eyes to see Clement's painting of Titan, and his characters -- also a kind of portrait themselves, representing science at its purest -- provide them.

It's no accident that their work is basic research, or that they pay such careful attention to following the rules of good science despite not being professional scientists.

If Greg Benford and other SF writers excel at portraying scientists as they are, then Clement excels here at portraying scientists as they should be, with the implied moral that any well-educated person should at least be able to follow their work. If these characters are a bit too dedicated and focused to pass for complete and well-balanced humans, this may be simply another subtle way that the title Half Life connects to the story -- they're living half-lives.

Not that this is going to make the book popular in some circles. The action is low-key, and there's no sex or violence. No Star Children show up bearing epiphany, and the crew refuses to sit around moaning in hopeless despair. Even worse, Clement doesn't just expect you to think about what he writes -- he forces you to. He has a vocabulary, and he's not afraid to use it.

All of these elements break the rules, either of high or popular literature as understood in the contemporary marketplace, and that's a good thing.

We sometimes forget that the typical style of novels is just a form, and that there are different approaches to narrative fiction. Half Life is a true novel of ideas, one of those different approaches, and Clement has the skills and experience he needs to make it rewarding.


Chris Aylott is co-owner of the Space-Crime Continuum, a science fiction and mystery bookstore in Northampton, MA.


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