Michio Kaku: Consciousness Can Be Quantified | Big Think

One of the great questions in all of science is where consciousness comes from. When it comes to consciousness, Kaku believes different species have different levels of consciousness, based on their feedback loops needed to survive in space, society, and time. According to the theoretical physicist, human beings’ ability to use past experiences, memories, to predict the future makes us distinct among animals—and even robots (they’re currently unable to understand, or operate within, a social hierarchy)