That's a great little story, I assume untrue, where the "flexible glass" was just chosen as a mythical invention, to make the point. Similar to the "acid that dissolves any material" story.

Reading it, I thought how fantastic it would be if that material had actually been around for centuries. Then of course, the end of the article links to gorilla glass, a material we all use daily and barely even think about. Do we live in mythical times?