Tuf Voyaging

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Move this to the top of your reading list: A socially-awkward man of integrity and ingenuity travels throughout the galaxy in an immense “Ark” of long-forgotten genetic data/technology, dabbling in “ecological engineering” while resolving global catastrophes.  If that’s not enough to capture your interest, he’s also a vegetarian who prefers the company of cats to people.  Oh, and it’s written by GRRM. 😉