Socrates makes a meal of the refutation. One point I don't discuss in the podcast is why a charioteer would want to judge a poet anyway, and the question may be directed at the judging of rhapsodes in competitions. What exactly is being judged? Their knowledge of the subject matter talked about by the poet, or their ability to perform the poem? This would seem to be an easy question to answer, but it would imply that the subject matter is not exclusive to one techne, and were Io to have arrived at this conclusion, Socrates' longwinded refutation of the rhapsodic techne might have achieved its goal.