Science isaboutflndingbetter explanations [3],andto dosoitisguidedby ‰sthetics, such asOccam’sRazor, anda conviction thatrealit y isflxed.Incomputerscience,instead, we buildtheobjects we explain, andwe changethem.Computerscience, then,isaboutflnding betterexplanations forthingsthatcanbe changedto helpimprovetheexplanations. A allthemetresofpapercomputerbooksshow,thereisa highdemandeven forconve...