Holy shit, that bird behaves more like a human than half the people we saw on the subway this morning. It's almost like he stepped out of a Pixar movie. One day, as Dr. Irene was closing up the lab, Alex said goodbye by telling her to "be good." Irene replied by saying "I love you," to which Alex answered, "I love you too." He then asked: "You'll be in tomorrow?" Irene assured him that, yes, he'd see her tomorrow.The next morning, Alex was dead.
There appears to be something in our eyes.
They actually had conversations like that all the time (you can see a similar one here, at around 7:55). You can say that he was just faking his banter and emotions through years and years of social repetition, but at what point can't you say the same thing about humans? You only know to jokingly tell someone to "be good" when they head out for the night because you heard somebody else say it and remembered it.
Dr. Pepperbeg has taught some of Alex's tricks to other parrots, but so far none of them has displayed anything close to his freakish level of intelligence. So far, it looks like he was one of a kind. Maybe the specific circumstances of Alex's upbringing turned him into the only parrot capable of higher cognitive thought processes... or maybe he was a member of some sort of parrot-like alien race, who came to Earth seeking refuge and friendship. Ask yourself: which explanation is simpler and less creepy?
We're going with "alien".