An immortal ninja painter

Unknown painter is anyone who is a painter and whose identity is not known to the public. The identity of the painter is usually known to the painter herself.

Inference and comparative analysis would be used to attribute various paintings of unknown authorship to various unknown painters. However, it has been suggested that there is a small possibility that all the paintings whose author is unknown are actually painted by one individual who is both immortal and an accomplished ninja.

The possibility, however, is small. So small, in fact, that mathematicians routinely use the immortal ninja painter probability as an infinitesimal in mathematical proofs.

• Sanitary Projections
• A Coffee Which You Cannot Drink