Edited sentence: Herbert is also noted as a poet and literary writer in his later years and lives in Boulder Creek, California.His latest poetical work "Four Milestones of Quantum Tantra" is in a literary magazine FLURB published by mathematician Rudy Rucker ( ) where Herbert vividly expresses key ideas of modern physics rhapsodically using qabalistic imagery.However, the thought experiment was quite cleverly posed and several top physicists took the trouble of refuting it in several publications.It did not work because it violated the linearity assumption of quantum theory which forbids the perfect cloning of an unknown quantum state.Nick Herbert is most noted in serious theoretical physics for his "FLASH" gedankenexperiment which tried to use quantum entanglement as a direct stand-alone communication channel in the late 1970's.This led to the "no-cloning theorem" at the core of modern quantum information/computer/cryptography theory