Anagnorisis and Peripeteia

http://www.dillonhillas.com/dumspirospero/lamb-castration-peripeteia-and-anagnorisis-and-the-war-on-work/
"“reversal of intention” (peripeteia) and “recognition” (anagnorisis)"
http://youtu.be/r-udsIV4Hmc

Also note the juxtaposition of the ideas imitation and innovation.