Why is analogy a powerful rhetorical device?

Answer this correctly what is the cause and effect

Idon't know which one from these two forms is correct! "he believed that the technology of the future would allow robots to do the same tasks as a human." or "he believed that the technology of the future would have allowed robots to do the same tasks as a human. , it's ! i need your !

After thea elvsted leaves the room, crushed by lovborg’s statement that he had destroyed the manuscript, he says to hedda, “to you i can tell the truth, hedda.” why does he think he can tell hedda the truth? do you think he’s right in this statement? why or why not? your answer should be at least one hundred words.