Happily for me, ninety-nine percent of all human life is spent simply repeating the same old actions, speaking the same tired clichés, moving like a zombie through the same steps of the dance we plodded through yesterday and the day before and the day before. It seems horribly dull and pointless-but it really makes a great deal of sense. After all, if you only have to follow the same path every day, you don't need to think at all. Considering how good humans are at any mental process more complicated than chewing, isn't that the best for everybody?