Be told from one old horror fan to another: This Michael Myers from the legendary HALLOWEEN series does raise that question over and over again. His evil seems to come from both a hard childhood and natures trimmings. From the tender age of six, Myers commited his first evil deed by murdering his older sister for motives no-one can know. Furthermore, Myers is beyond human. Often explained as a "force of nature," this means his evil carries a supernatural element. He need not follow the evil characters of popular media in everything he does; his a guy whose notoriety instead goes its own way. To get a fuller picture, we might read back his silence throughout the show for reasons his evil is so unfeeling and irrational. It suggests that, in the final end perhaps were deliberately designed puzzles to fence in his actions within their own limits, not humanity's.