What are you, really? If you lost your memories, your limb, or your physical sensations, would "you" still be there?

For over a thousand years, philosophers have argued that the "I" at the center of your experience is an immaterial soul—a substance that exists independently of your brain and body. No one argued this more famously than the Persian polymath Ibn Sīnā (Avicenna). He invited us to imagine a person created in a void, floating with no sensory input, to prove that self-awareness is innate and non-physical.

Today, Modern Neuroscience challenges this ancient vision. We can now map the firing of neurons and watch as the "self" changes with a single stroke or chemical imbalance. To the scientist, there is no ghost in the machine; the machine is the mind.

In this dialogue, these two formidable perspectives meet. Avicenna defends the primacy of the soul, while a Modern Neuroscientist presents the hard evidence of the brain. Together, they explore:

• Can the "Floating Man" experiment survive modern science?
• Is consciousness a biological calculation or a spiritual substance?
• What happens to the "Self" when the brain is silenced?

Prepare to dive into the deep waters of metaphysics. No background in biology or theology is required—just a curiosity about the mystery of your own existence.