Machines Like Us

In On Deep History and the Brain, Daniel Lord Smail suggests that human history can be understood as a long, unbroken sequence of snorts and sighs and other self-modifications of our mental states. We want to alter our own moods and feelings, and the rise of man from hunter-gatherer and farmer to office worker and video-game adept is the story of the ever proliferating devices -- from coffee and tobacco to religious rites and romance novels -- we’ve acquired to do so. Humans, Smail writes, have invented “a dizzying array of practices that stimulate the production and circulation of our own chemical messengers,” and those devices have become more plentiful with time. We make our own history, albeit with neurotransmitters not of our choosing.

Read full story at The New York Times.