The difficulty in defining the soul as a distinct, non-physical entity that is the seat of identity and consciousness, and then explaining how this immaterial "thing" interacts with the material brain. How does an ethereal soul without mass or energy cause neurons to fire (the mind-body problem on steroids)? If it doesn't interact, it's irrelevant. If it does, it should be detectable. The soul often ends up defined only by what it is not—not physical, not mortal—leaving its positive qualities mysterious.
Example: "The neurosurgeon said personality changes with brain injury. The priest said the soul is immutable. The hard problem of the soul: if 'I' am my soul, why does a clot in my frontal lobe turn 'me' from a saint into a jerk? Either the soul is mysteriously tied to meat, or 'I' am just the meat. Both answers are unsettling."
by AbzuInExile January 31, 2026
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