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It was funny the way he kept thinking things tonight. Usually he just went along, especially when he was as tired as now, but - maybe it was the moon - he kept remembering bits of things, and words sort of formed themselves in his head like someone was talking. He thought about his bed and how nice it would have been to drive home from work; only of course he got sort of mixed up when driving, and there'd been a couple of smashups. Funny he should have done that, because all at once it didn't seem so hard: just a few signals to learn, and you kept your eyes open, and that was all.

The sound of his feet was hollow on the road. He breathed deeply, drawing a cool night into his lungs, and looked upward, away from the moon. The stars were sure big and bright tonight.

Another memory came back to him, somebody had said the stars were like the sun only further away. It hadn't made much sense then. But maybe it was so, like a light was a small thing till you got up close and then maybe it was very big. Only if the stars were as big as the sun, they'd have to be awful far away.

He stopped dead, feeling a sudden cold run through him. Jesus God! How far up the stars were!

The earth seemed to fall away underfoot, he was hanging on to a tiny rock that spun crazily through an everlasting darkness, and the great stars burned and roared around him, so far up that he whimpered with knowing it.

What if we're all designed to be smarter than we actually are? That is, in short, the premise of master science fiction novelist Poul Anderson's 1954 debut work, Brainwave. Unbeknownst to its inhabitants, the solar system has, for millions of years, been caught in a force field that has had the effect of suppressing intelligence. When, in the course of normal galactic movement the solar system finally breaks free of the force field and its inhibiting effects, a remarkable change begins to sweep across the earth.

In fact, the entire world is turned upside-down, and Anderson's novel is devoted to detailing the sometimes-surprising, sometimes-chilling aftereffects of this watershed event. In one of the novel's opening scenes, Archie Brock, a mentally disabled man, finds himself suddenly awash in new kinds of thoughts as he looks up at the night sky. In another scene, a young boy on summer break works out the basic foundations of calculus before breakfast. Human life is dramatically transformed, as people with IQ's of 400 find themselves living within social structures and institutions designed for people of considerably less intelligence. There are also those who refuse to accept what has happened and band together to rebel against the new order.

In another interesting twist, human relationships with other creatures on the planet are also thrown into upheaval, as animals rediscover their native intelligence. Archie Brock, for instance finds working on a farm with intelligent animals a frustrating, comic and confounding experience, as some animals band together and escape while others befriend their former masters.

A fascinating "what if" novel, Brainwave is really an exploration into the ways human society is organized and the assumptions that are made about how life is valued. It is also a novel about equality and what happens when the hierarchical structures by which we arrange our daily lives disappear.