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

Pale limestone cover in graphite green and iron red reading What Is an Ancestor, with the line: an unrecorded life is not less determinate than a recorded one. A faint 2 to the 30th power sits at the lower right.

What Is an Ancestor

An ancestor is ordinarily described as someone you can trace, and the tracing is thought to run out where the documents do. Derived from the foundation, the word turns out to name somebody exactly as settled as your own mother and, for the overwhelming majority of them, permanently unreadable — and those are two separate facts, which is the distinction the family tree has no room for. … readWhat Is an Ancestor

Dark indigo cover for the essay What Is an Opportunity, with a warm amber glow falling through an open bracket at the right edge and the subtitle: a prerequisite does not cause, does not make possible, and does not happen.

What Is an Opportunity

An opportunity is ordinarily described as a window that opens, makes something possible, and closes. Derived from the foundation’s definition of a condition, the word turns out to name a prerequisite and then credit it with three things the definition denies — which is why two people can stand in front of the same opening and only one of them is standing in front of anything. … readWhat Is an Opportunity

Dark cover for One Reading, Two Unknowns: a green ray A = 0.625 E through the origin of the Expectation–Actual plane, with three marked points (8, 5), (12.8, 8) and (16, 10) that all produce the same surprise reading of minus 0.470.

One Reading, Two Unknowns

Surprise is one number made from two, and the feeling does not come labelled with which term moved: a world that fell short and an expectation that had grown produce readings identical to the third decimal. A single reading is a line of position, not a fix — which is why the numerator gets convicted, why disagreement is the only gauge of a denominator, and why a forecast written before the world arrives is the one artifact that makes the next reading identifiable. … readOne Reading, Two Unknowns

Cover for the essay What Is a Detail: a rag-paper plate with a crimson italic title, a two-armed axis mark labelled distinguishability and ordering, and a faint oversized numeral two at the right edge.

What Is a Detail

A detail is a small part of a bigger thing, and small parts matter less — except that the proverb says they matter most. Derived from the compass at the base of the foundation, the word turns out to be reporting on an axis that has no size in it, which is why the two proverbs were not rivals, why “how much detail is enough” has no answer in the form it is asked, and why looking harder will not supply one. … readWhat Is a Detail