The machine is impersonal, it takes the pride away from a piece of work, the individual merits and defects that go along with allwork that is not done by a machine--which is to say, its little bit of humanity.
Six is a number perfect in itself, and not because God created the world in six days; rather the contrary is true. God created the world in six days because this number is perfect, and it would remain perfect, even if the work of the six days did not exist.