Seveneves by Neal Stephenson https://en.wikipedia.org/wiki/Seveneves One of the few books, that when I'm finished, I just want to turn it over a start again. Covers a wide range of important and relevant topics in technology, biology/genetics, ethics. My only problem is it is too short! Could easily have been a triology like the Baroque Cycle (another favorite) https://en.wikipedia.org/wiki/The_Baroque_Cycle
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