How does Powell's use of "I" and "you" support his point in the first half of the speech?

Using Colin Powell's 2003 pre-war speech to the UN as a case study, this essay illustrates ways in which discourse analytic methods can serve investigations of constitutive rhetoric. Prior to the speech, Powell's reluctance to go to war and his skepticism of the need for military action in Iraq was well known. His conversion to the administration's position was key to the persuasiveness of the speech. Thus, within the speech he needed to reconstitute his ethos from doubter to advocate. The analysis focuses on how specific linguistic qualities such as modality, positioning, narrative, and evaluation assist Powell in doing so. These discourse analytic tools reveal ways in which discrete linguistic moves contribute to the constitutive work of ethos formation and re-formation.

Explanation:

if this is referring to star wars, han shot first.

figurative language is a resource that fiction writers use to make better descriptions of what they want to write about or express. they can improve their stories, as they can elaborate more vivid and colorful sentences. this way, the reader will be able to have more detailed images in his/her mind.

places, objects, people and even feelings or emotions can be described with a lot of detail to metaphors, similes and personifications. making different kinds of comparisons to make a description more specific, as well as assigning human qualities to non-human objects (and vice-versa) can be very useful for science fiction writers.  

on the other hand, alliterations allow writers to elaborate more entertaining and creative sentences. it consists in using a sequence of words that start with the same consonant letter. they can be used to emphasize something important the writer wants to express, or just as a fun literary device.