What is the best hard(ish) scifi novel of the past five years?

How does one use Bluesky to connect with one's local community? I want to start working on solidarity with the people that live near me

I am alive! I want to create engagement on #Bluesky (which i will always pronounce blue-ski) so that the internet metrics favor it above twitter.

Respond to this post with any fact about any subject.