User blog comment:Glflegolas/Human Extinction -- are we approaching the Doomsday?/@comment-2601:8C:4302:14DA:11CB:A93C:A61:26C-20170813151327

Note that the ocean will not literally boil away until the sun expands. I believe that diseases and self-enhancement devices can Kill us, on the other hand. However, isolated pockets of humans will still remain.