"I enjoy sci-fi thanks to my brother John's passion for it, and this was the first sci-fi book to hit my radar. It touches on so many things: politics, religion, paganism, revivalism, psychokinesis – and it even introduced a couple of things that didn't exist before: the waterbed (which came out a few years after the book), and the word "grok" which means "to understand something intuitively or by empathy.” There's a lot to grok in this book."
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