See my other answer for some additional commentary on this style in general. For Seveneves I think there's a combination of factors at play. Maybe he didn't kn

See my other answer for some additional commentary on this style in general. For Seveneves I think there's a combination of factors at play. Maybe he didn't know exactly how to finish it, and maybe (probably) he wanted to leave things open enough for a sequel. Mostly though, I think he was just trying to be subtle. There are a few moments through the climactic scenes that are very easy to miss but have a big impact on the plot line. Overall, I like that some authors have the guts to finish a book without wrapping up everything in a tidy bow (which can often be cliched and overwrought).