The strongest glasses have an Achilles' heel that causes them to fail catastrophically when pushed past their limit. They do not bend or stretch, as all damage concentrates into a single plane and the material fails in an instant. This brittleness has long capped the usefulness of high-stabilit...
Source: [Phys.org](https://phys.org/news/2026-08-particles-stable-glasses-stronger-catastrophic.html)