“If we assume that cancer, and heart attacks, and Alzheimer’s, and anything else that might kill you is the compilation of a ton of cellular—and therefore subatomic—events, that spinning electron may or may not launch a gene that causes a reaction that will lead to your death. Die-hard quantum immortality buffs will say that we are all, in some universe, the oldest living person on the planet—having dodged all these genetic and literal bullets.