I don’t particularly care about the “hard problem of consciousness”, whether consciousness is entirely generated by the brain or whether there is something beyond the brain that we simply do not yet understand.
For me, another question is just as fascinating: what makes Homo sapiens so cognitively different from the rest of the animal world?
Perhaps the difference is not consciousness itself, but the extraordinary depth, complexity and layers with which we process conscious experience.
Other animals clearly have subjective experiences. They experience hunger, fear, sexual desire, attachment, jealousy, pain and pleasure, and many species display behaviours resembling empathy and compassion. In that fundamental sense, consciousness is certainly not an exclusively human possession.
What appears remarkable about humans, however, is our ability to build layers of thought upon those experiences.
We are not merely conscious; we can become conscious of being conscious.
We can experience hunger while simultaneously wondering why we are hungry, thinking about what we will eat tomorrow, remembering a meal from childhood, worrying about our health, listening to music, planning our future, imagining something that has never existed—and even questioning the nature of the consciousness experiencing all of this.
An animal may become hungry and search for food, although many species are also capable of storing food, anticipating future needs and planning ahead. Humans, however, seem to take this capacity to an entirely different level.
We cultivate crops months in advance, build refrigerators, create global supply chains, study nutrition, invent thousands of recipes and transport food across continents—and can still sit at the dinner table wondering what we should eat next week.
Perhaps this extraordinary capacity for integrated, recursive and abstract processing is one of the defining features of Homo sapiens.
Evolution did not simply give us more thoughts. It gave us the remarkable ability to think about our thoughts, revisit the past, simulate possible futures, imagine alternative realities, and hold several layers of experience and possibility in the mind at once.
And perhaps therein lies both the brilliance and the burden of being human.
The same mind that can imagine a future can also worry endlessly about it. The same mind that can revisit the past can become trapped within it. The same consciousness that allows us to create science, music, philosophy and civilisation can also generate anxiety, conflict, resentment and suffering.
Perhaps our greatest evolutionary gift and one of our greatest burdens are, in the end, the very same thing.
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