You should really consider the possibility that intelligence (at least in the form of us humans) is detrimental or even a barrier to becoming space-faring. <br><br>Dinosaurs were quite happy for about 165 million years and would probably still be happy today if it hadn't been for a cataclysmic event. Humans, however, with all our intelligence have pushed the planet to the edge of habitability within just 200,000 years. That is a direct function of our evolutionary path of course and which thankfully won't be the same as other alien species.