which asserts that the universe is made only of "matter", and that all mental phenomena can be explained in materialistic terms. In their approach to death, these philosophers rejected the "duality of existence", and emphasized a materialistic monism, which naturally led them to a dead-end in their understanding. This is a predictable outcome of attempting to explain a purely metaphysical phenomenon, like death, using exclusively material mechanisms. Their conclusions ultimately portrayed death as the cessation of consciousness and a plunge into oblivion, completely negating the possibility of an afterlife. Some even argued that only the memory of exceptional individuals—geniuses and outstanding human beings—might endure. Throughout their work, they adhered to the scientific method, which, in the end, revealed the inadequacy and collapse of their theories and claims.
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