I've read a book by Pirs Anthony (sp?) called "Macroscope". Its a Sci-fi book set in 1980'-90s. I'm not going to tell you what the book is about in case you will read it in future. One thing that really caught my attention and scared me was the the "beginning of the end". Spoiler : humans have constructed a marcoscope - device allowing them to see distant planets. Of course intelligent life was found. And in all 4 cases where it reached the stage of "civilization" it was eliminated by pollution or resource-depletion. This scared me a great deal. Come to think of it we are not far of from the same faith as those civs. Overpopulation, depletion of resources, global warming, pollution, nuclear weapons + terrorism, crisis and breaking of environmental "circles" (food chains, water flows), mutations and so on. Of course some say that our technology will help us deal with all of that. Seriously with all those problems to solve (and they are getting bigger over the years) and so much population do you really think we can survive as a species? I opened this thread to hear your views. Do we come to an end slowly but surely? Or will something help us survive? Or you don't care about this and think its our childrens problem? I urge you: no trolling, no country-blames, no nationalism, please keep it a clean on-topic thread .