Answer:
The development in technology.
Explanation:
It talks about the change in technology and how it's getting better.
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“They both believed that there was too much focus on structure, so they veered away from it and used conversational language. They differed in that Pound believed in using language precisely and minimally, while Whitman tended towardlonger, wordier verse. ... Sample response: Pound wanted to simplify modern poetry.” Taken from Course Hero.com
A term for a story within a story would be called a frame story.
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To add specific factual details
