We're doomed eventually.
Whether, it's shifting weather patterns, gamma radiation, solar flares, the sun burning out, the Milky Way and the Andromeda Galaxies colliding (3 billion years), a black hole, a meteor, a zombie plague, a regular plague, ecosystem collapse, alien extermination, nuclear winter, nuclear global annihilation, the oceans flooding, choking on greenhouse gases, being cooked by greenhouse gases, another Big Bang due to the universe's expansion, gene pool corruption, mass suicide, mass homicide, mass genocide, anarchy, food poisoning, or well, other dangerous things, we're gonna be gone eventually.
BTW The stars don't live to 100 billion years.
