by Stephen Baxter
This is a slim book of what might be called ‘popular cosmology’. Baxter takes a look at where the universe-at-large is going, according to the best that was known at the time of writing, and what science tells us about what’s coming up in the future. He spends some time considering possible futures of human technology, but so much is unknowable about how that’s likely to develop that he soon widely leaves this field to talk about the slow aging of the universe, and strategies for us to cope with same.
I gather Carl Sagan wrote books something like this, popular science outlining the grand scale of the universe we live in. Baxter’s used to that scale from his sf writing, and he plays with big ideas and vast reaches of time and space just as in a big-screen sf story. The writing’s not terribly sophisticated, but it is clear and non-technical while still being detailed. Overall, well-written and mind-expanding.