Paul Cornell has a BSFA shortlisted novella, called The Copehagen Interpretation available for reading over at Asimov's Science Fiction.
I rather enjoyed this story, which plays in an alternative time line, with a slightly steam-punky Victoriana feeling (no, I wouldn't call it Steampunk, not really), where humanity has spread throughout the Solar System, material/space etc can be contained within and affected by 'folds', and the powers of the day have reached a precarious (and protected at great effort) 'Balance', which in turn has stopped all or most research and exporation (as this would be one-sided, and thus threaten the balance).
But then again, any story which mashes up Quantum Theory with a contrapunktion (see what I did there?) of Dr Duncan MacDougall's Weight of the Soul and the Dark Matter in the universe gets my vote, for sure!
Read it for yourself here - and if you enjoy it, why not vote for it at the BSFA Awards?