Why are people who understand what they talk about always so pessimistic? Pessimism is not good for your health - they shouldn’t be dismissive of anything just because of what might/will happen in the future. Learn something from the folks who talk out of their elbows and start living in the moment. The world hasn’t ended even once before, so why worry about it? Let people do whatever they want and if that leads to the end of the human species completely, then we deal with that after it happens.