these files take what could be very memory-intensive sound files and remove all of the excess noise. unfortunately, finding garden space in the center of a developed urban area is practically impossible. while our parents hoped for a peaceful country and a stable rice bowl, our generation today wants more. she said that she had seen my girls and she said they were beside the scanner (crying) but that her husband was waiting there for us! overall though, i would say things look good. no knowledge of category theory is assumed. 