A quote: " ... international policymakers must pay serious attention to the reality of species-obliterating risks."<p>Are these people all completely ignorant of evolution and science? No matter what happens in the future, one or another species-obliterating risk is a certainty. Here's why:<p>1. Our species has existed for about 200,000 years.<p>2. On that basis, and given our present knowledge of biology and evolution by natural selection, it's reasonable to assume that, within another 200,000 years, we will have been replaced by another species who either successfully competed with us, or into whom we simply evolved over time.<p>3. Human beings are a note, perhaps a measure, in a natural symphony. We're not the symphony, and we're certainly not the reason the music exists.<p>4. Based on the above estimate, there will be 10,000 more human generations, after which our successors will no longer resemble modern humans, in the same way that our ancestors from 200,000 years ago did not resemble us.<p>5. We need to get over ourselves -- our lives are a gift, not a mandate.<p>6. I plan to enjoy my gift, and not take myself too seriously. How about you?