Physicists have uncovered a hidden third form of magnetism that challenges more than 100 years of established physics. Called altermagnetism, the discovery could transform future computing and electronics while opening an entirely new frontier in quantum research.
I updated my answer. My challenge here is to write a rough understanding, without using any technical jargon (necessary for accuracy).
I appreciate the effort, my college physics courses are a bit too far in my past to remember these things