Think about the choice of a raven in “the raven” by edgar allen poe. why might poe use a raven instead of another bird?

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 !