Quantum Immortality

You only remember surviving. Somewhere, the theory smiles, you always do.

The quantum suicide thought experiment (Moravec, Tegmark's framing): under many-worlds, a conscious observer only experiences branches where they survive — subjective immortality by selection effect. Tegmark himself notes the argument fails for gradual deaths. It is real philosophy-of-physics literature, not folklore; the lore's use of it (near-death 'timeline switches') strips the conditions. Included as the archive's deepest rabbit hole with legitimate academic footing. Links many-worlds and the simulation question.