Data.Bytestring is still not as fast as it could be. Just try counting the number of eol characters in the bytestring (or any kind of character). Now do the sam

Data.Bytestring is still not as fast as it could be. Just try counting the number of eol characters in the bytestring (or any kind of character). Now do the same with `wc -l`. They did make the library perform well, but there are tiny details that squeeze the most out of your hardware and they seem to be a nuisance to do, even when you're thinking about performance. Despite that, fusion is beautiful and happens without all of that verboseness that makes the same thing in C++ work.