POEM - FIXITY X ENERGY

What does make something a poem rather than a short story, or memoir, or novel or TV program. Two terms the poet Donald Hall has identified are “Fixity” and “Energy.” Fixity means there is one exact word and a correct placement of that word. He claims, if you change a sentence or paragraph of a novel it will not greatly alter its meaning. If you change one word of a poem, you change that poem