Understand the Great Depression

How does the poem's mood and tone change in each of these stages of “o captain! my captain! ” by walt whitman? (i need an answer asap )

How can you paraphrase this, this is about golden age fallacies. these are all rational people who know that older is not necessarily better, but many are taken in by this fallacy and seem no longer able to reason with any degree of reliability

What is the main way a sequence of events is used to resolve a conflict?