Does it make any sense? Sure it does, some of it anyway. It does seem a tad optimistic to believe that mankind will make it through the next 50,000 years although we probably have some chance of surviving in small numbers through the next extinction event or two.
Mound, I have doubts about 50,000 years as well.When I see a baby I feel sad. Thinking what kind of life is waiting for her/him. Climate change is moving fast.