Missing from any certainty of near-term human extinction, is a greater understanding of energy itself and wider sense of existence. When stacked, the odds do not account for spiritual power. Consider for a moment giant sequoia seed, how unlikely, seeming impossible, that something so small could hold within it the pattern and potential for something so big. Despair not.
Please see Leli (poem) and Clinging to Certainties, Belonging to Joy re: Near Term Human Extinction at Kosmos Online