Generally people ignore changes that don't directly affect their life within a short timespan. Global warming will cause far more disturbance in the near future

Generally people ignore changes that don't directly affect their life within a short timespan. Global warming will cause far more disturbance in the near future than anything else will and people seem to be mostly oblivious to it. Extraterrestrials would provide a brief philosophical shift and when people realize they are not coming to visit us and we really can't say anything concrete about them they would continue their life mostly unaffected. Says I.