Pale amethyst cover with geode-like concentric rings and a faint P8, titled What Is a Discovery: the naming is discovery, the mark is invention.

What Is a Discovery

“Who discovered it?” is usually heard as a question about where a thing started. Derived from the foundation’s eighth primitive, the verb already carries the answer — a discoverer is, by the word’s own grammar, not the origin of what was found — and “discovered or invented?” splits cleanly: the naming is discovery, the mark is invention. … readWhat Is a Discovery