Keep in mind that we have it good in part because we've avoided a nuclear war so far, and the bigger environmental and climate change issues haven't impacted us

Keep in mind that we have it good in part because we've avoided a nuclear war so far, and the bigger environmental and climate change issues haven't impacted us yet. In the future, we will potentially have designer viruses, weaponized nanotech and AI to concern ourselves with. So it's probably good that a few people express their worries about unethical uses of technology.