Our Human Ancestors Nearly Went Extinct 900k Years Ago, Genetics Suggest

Good discussion yesterday (273 points, 199 comments) on this story from a different outlet: <a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=37343711">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=37343711</a>