Suppose Israel and/or US nukes Iran. NHIs allow it because it is localized. But by chance it leads to triggering a world-destroying nuclear launch. Suddenly UAPs intercept them all, and we enter a new era where nukes are either unreliable or never working again. Nuclear deterrence collapses, and conventional hot war between superpowers is once again on the table, starting with war breaking out between everyone who launched nukes at each other. WWIII begins, quickly leads to massive global devastation, chemical and biological weapons and everything evil short of destruction of the biosphere which would cause the NHIs to step in again. At that point whether or not aliens exist will matter less to people than the fact that enemy autonomous AI-piloted drones have taken out the entire energy grid, mass starvation starts, smoke is choking the air downtown, fire trucks have no gas or water source, and the human world starts looking like Gaza in many areas. And it keeps on like that for centuries. submitted by /u/jodawi [link] [comments]