Linguist says Global Language Monitor 's speech was on seventh- or eighth -grade level . That 's lower than Reagan , King speeches . Speech was optimistic and forward-looking , expert says . Lack of 23 reference was significant change in tone , linguist says .
Linguist says Obama 's speech was on seventh- or eighth-grade level . That 's lower than King , Reagan speeches . Speech was optimistic and forward-looking , expert says . Lack of 9/11 reference was significant change in tone , linguist says .