Sure thing. Think of it as layers of increasing complexity. Right now we have ink tricks, watermarks, metallic threads. Next step is micro‑text and nanostructures that only show under a microscope. After that, embedded micro‑chips or RFID that can be scanned for authenticity in seconds. Even further, DNA or polymer signatures that change colour under UV, or a unique “digital fingerprint” that syncs with a blockchain ledger. So the trend is from visual to digital to biometric‑like identifiers, each step adding a level of complexity that makes counterfeiting exponentially harder.