Costly signaling and verification

Why would anyone make currency out of a stone disc too heavy for one person to lift? Because the effort itself is the point: a dishonest sender could never afford to fake it. This page gathers conjectures built on signaling theory, a concept economists and evolutionary biologists both use, holding that a message becomes credible exactly when it costs something real to send. Read this way, a giant, nearly immovable stone disc works as money precisely because it is so hard to produce or move; a scribe's candid colophon -- the note recording when and how a copy was made -- becomes an honesty signal because a forger would have no reason to admit a flaw; and a heavy apparatus of citations works as armor that thickens exactly when forging a false citation gets easier and cheaper.

Seals priced to stakes and Proof-of-work in limestone both treat a costly, hard-to-fake object -- a priced lead seal, a limestone monument -- as functioning like a modern proof-of-work system, where the expense itself is the guarantee. The hollow ijaza swells tests whether a transmission certificate can be inflated without the real substance behind it, teaching or verification, actually growing to match. Citations are armor and Audit the proof-text both ask whether citation practice itself thickens defensively once the cost of forging a false citation drops, treating scholarly apparatus as armor rather than mere convention.