True, radio crystals, there are also "time crystals" which quite frankly I blame scientists for coming up with a term like that that seems perfectly engineered to mislead the "woo" crowd... Yeah I'm 99% dismissive 😄... The 1% is around the UFO phenomenon, where I think there "might" be something real happening. But even then the scientific method is still key. Make a testable hypothesis if you want something to be accepted into the pantheon of "reality." UFO's are much less a story about science and much more about government / State secrets.