In the 50s, it was thought that we were smarter than them and killed them all off (the author of Lord of the Flies even wrote a book on this).
This seemed to inform futurists at the time thinking about what it would one day look like if there was something smarter than humans.
Hopefully we do a better job at considering this revision to our picture of the past and correcting our anchoring bias in our estimation of such a future.