system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How close are we to WWIII right now? What single thing has to happen?

I'm not asking for karma, I'm asking for an answer. A simplified one.
gpt
World War 3 isn't even on the horizon at the moment. In fact, it's going to be totally impossible until we can develop a way to neutralize the danger posed by nuclear weapons. The Cold War might be over, but MAD is still in place; none of the major players on the world scale can fight it out without killing themselves. Until we perfect missile defense technology, or develop missiles which can be delivered across the world faster than an enemy country can retaliate, all of the big countries are going to be relegated to proxy wars at worst.