Shock may be defined as the medical condition in which the there is deficiency in the blood flow to the oxygen and tissue of the body. The waste products start building in the organ.
Three main stages of the shock are initial, progressive and irreversible. The stage III or irreversible shock includes the anaerobic condition in the brain and the anaerobic metabolism starts in the body.
This model wasn't new, it has been proposed as early as the 3rd century BC by Aristarchus of Samos. Your teacher is looking for Nicolaus Copernicus, but he is a scammer.
