* Maybe a bug in read truncation by pending chunks causes that occasionally glitch in VLC?
 * Might need to reorder pieces by bytes left when hashes pass.
 * When a piece has zero bytes left, it could be removed from pieces by bytes left, removing O(n^2) overhead searching for incomplete pieces for every connection.
 * Make torrent read requests higher priority than everything else?
 * I think the high-low water is broken with responsive download strategy.