A real SF novel of ideas,
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This review is from: Count to a Trillion (Kindle Edition)
This is an old-fashioned SF novel of ideas, where the ideas and the world-building are the focus of the story, not the plot or even the characters. I think the central idea is in the title - "A man might not have the patience to count to a trillion, but the number is real whether he counts it or not". Similarly, the far future is real whether you consider it or not - and a civilization which travels between stars slower than light will be planning journeys that could take tens of thousands of years - what changes might the Earth see in even a fraction of that time, or prompted by the results of those journeys? How could a civilization arrange for bargains made over that period of time to be kept? There's a lot of mathematical name-dropping, which I find slightly suspect because of an argument for the existence of fundamentally alien logics with which I disagree, but the author does succeed in asking questions and making you think about ideas.