How Much Consciousness Does an iPhone Have?
What has more consciousness: a puppy or a baby? An iPhone 5 or an octopus? For a long time, the question seemed impossible to address. But recently, Giulio Tononi, a neuroscientist at the University of Wisconsin, argued that consciousness can be measuredâ€”captured in a single value that he calls Î¦, the Greek letter phi.
The intuition behind Tononiâ€™s idea, known as the Integrated Information Theory, is that we experience consciousness when we integrate different sensory inputs.