nostr:npub1w4uswmv6lu9yel005l3qgheysmr7tk9uvwluddznju3nuxalevvs2d0jr5 have you ever heard of signing an event by way of a NFC wearable ring?

For example: I write a post on Amethyst, Amethyst asks Amber for the signature, amber asks for a signature from a NFC broadcast that communicates with a wearable ring holding an nsec.

Is this outrageous to think possible?