Abstract

Long before self-awareness, memory, foresight and powers of conscious deliberation emerge to give an advantage over those creatures that lack those things, there is a more promising alternative to consciousness at every step of the way: more efficient unconscious mechanisms, which seem equally or more likely to be thrown up by spontaneous variation. If you had to undertake something really difficult – for example growing in utero a brain with all its connexions in place – consciousness is the last thing you would want to oversee the task.