It always surpises me how little people fear nuclear weapons. Given that it takes to launch only one of them to trigger the cascade and that there are some 15,0

It always surpises me how little people fear nuclear weapons. Given that it takes to launch only one of them to trigger the cascade and that there are some 15,000 of them around the world the scenario seems pretty believable. What's worse, virtually every doomsday scenario ends with nukes burning everyone alive. Scared of global warning? Here we go: Icebergs melt, the sea level rises. Bangladesh is under water. 100M refugees flood India, Pakistan and China. Recall the political turmoil caused by couple of million refugees in Europe. How would it go if it happens at much larger scale in the area with three nuclear powers? Boom! You are fried meat. Is economic inequality your nightmare? Are you afraid it can lead to similar outcomes as in 1914? Well, add nuclear weapons to the mix. Inequality causes political instability, political instabiliy ends up with nuclear weapons in the hands of weird people. Kaboom! There goes breathable atmosphere. Nanotechnology eating the world? Antibiotic-resistant supergerms? Out-of-control artificial intelligence? Whatever your nightmare scenario is it always ends the same way. Catastrophe leads to chaos. Chaos leads to loss of control of nukes. One is lauched. All other follow automatically. Adieu, cruel world. Now, this is a genuine question: How come that people, even intelligent people, like those on HN, are not scared shitless?