“Existence” is the cause of “consciousness”. Consciousness is its effect. The perceived entity, the material thing, and the entity that perceives it, a living being with sensory organs, must both exist first for perception to exist. Without existence, there is no consciousness. Therefore, ‘I think, therefore I am’ is false. ‘I exist, therefore I will think’ is objectively true.
If the only thing that existed in the universe were an eye with a brain floating in an empty cosmos, what light would you perceive? None. What consciousness would you have? None. For consciousness to exist, two separate entities must exist at the same time. One perceives. One is perceived. Without their existence, you cannot speak of any kind of consciousness.
The Platonic theory proposes that ideas existed first, by themselves, without brains, and then projected their shadows onto matter to create material entities, including brains. In short, Plato believed ideas could exist before a physical brain. Mystics and Platonists still believe this, but science has never proven it. Where did Plato get the idea? Born in Athens in 427 BC, his thinking reflected his cultural imprint. He grew up believing Zeus hurled lightning from the clouds. Attributing will to inorganic things is called animism, a trait of primitive cultures. Although Greek philosophers discovered great truths, they ignored electrical phenomena. Influenced by animism, Plato proposed a demiurge, or Zeus himself, as the author of the material universe.
Descartes said: “I think, therefore I am.” If you interpret this as ‘first you think, then you have a brain’, the statement is false. You cannot think without a brain. Just as you cannot have an idea without neurons, you cannot write software without micro-transistors. Existence must come first. Consciousness follows. The entity that acts, neurons or micro-transistors, must exist before the action, perception or program.