Image credi
https://www.theguardian.com/news/datablog/2009/sep/06/nuclear-weapons-world-us-north-korea-russia-iran
Ok, so here is a wild theory not based on any fact at all, it is pure conjecture!
So what if North Korea, being possibly tied up in the dirty side of bitcoin such as money laundering etc, seeing the price starting to fall from record highs over the weekend, decided that Sunday would be the perfect time for a nuke test to arrest the slide, as bitcoin is now supposed to act as a safe haven for wealth such as gold, and geopolitical tensions should increase the value of such assets!
Just putting it out there...