It is not true that there is no practical use of cosmology, Cosmology is intimately related to the sciences of Physics and Quantum Mechanics in understanding the underlying nature of everything.Actually there is no practical use at all for cosmology
The knowledge of Quantum Mechanics lies at the foundation Physics and Cosmology
anc, still far far less to vague notions about some " afterlife".
As far as science goes there are likely no possible "notions of afterlife."
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