Eternal oblivion, or simply oblivion, is the belief that the self ceases to exist after death, as opposed to the belief that there is an afterlife (such as a heaven, purgatory or hell), or any state of existence or consciousness after death.
According to neuropsychology, the mind or psyche, as well as consciousness and personality, is a product of the functioning brain. During brain death, all brain function halts permanently. The implication is that the mind fails to survive brain death and ceases to exist. Barring the existence of some spiritual or immaterial component (such as a soul) which survives death, many people believe that an afterlife or consciousness after death is scientifically or philosophically impossible.
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