But then, subjective reality, say the experience of an emotion, impulse or dream, doesn't necessarily depend on objective reality for its existence. The subjective world is as real as the objective ...

Forbes contributors publish independent expert analyses and insights. I write about the philosophy and ethics of science and technology. Consciousness can have many levels. The lowest level is ...

The Zen teacher Chuang Tzu dreamed he was a butterfly. When he woke, he wondered, "Am I a man who dreamt about being a butterfly, or am I really a butterfly who now dreams about being a man?" The ...