Listen to the Sam Harris interview with Thomas Metzinger, podcast episode 96. It's worth the time overall, but near the end Thomas discusses why ending life and suffering is a reasonable position.
Good article on why we may not have found intelligent life in the universe, including how organic life may only be a relatively brief stage of evolution which ends up with machine AI. https://www.scientificamerican.com/article/most-aliens-may-be-artificial-intelligence-not-life-as-we-know-it/
Two things.