I used to have such a positive gut feeling: e.g. the idea of Earth having a population of 100 billion felt awesome. These days I think my positive gut feeling to that is much weaker.
Where exactly had you lived when the idea of 100 billion people on Earth felt awesome? I suspect the feelings toward population increase are correlated with how much 'free' land and, on the other hand, crowded places one sees around in one's life. There aren't many crowded places in Finland.
If it's worth saying, but not worth its own post, even in Discussion, it goes here.