Dr. Michael Demkowicz predicted self-healing in metal; this summer it was finally observed, shocking scientists around the world. A microscopic crack grew in a very small piece of platinum when placed under repetitive stretching. The experiment, designed to study fatigue crack growth, continued a
Am I reading this wrong, or is this just cold welding https://en.m.wikipedia.org/wiki/Cold_welding which is expected and has been known about for a long time? The end even uses the phrase.