Original sentence: Professor Nambu had proposed a theory known as spontaneous symmetry breaking based on what was known to happen in superconductivity in condensed matter; however, the theory predicted massless particles (the Goldstone's theorem), a clearly incorrect prediction
Edited sentence: Professor Nambu had proposed a theory known as spontaneous symmetry breaking based on what was known to happen in superconductivity in condensed matter; however, the theory predicted massless particles (the Goldstone's theorem), a obviously absolutely extremely horribly wrong not correct incorrect prediction