For my cybernetics and post-humanist friends, I’d say that this scene from Doctor Who when I was 8 yrs old is what captured my interest.
Imagining a Greek Philosopher plucked up from Earth with the promise (and delivery) of Immortality? Well, he’s learned a lot in 2500 years.
This is from over 30 years ago. As a kid I figured we’d be here by 2017. Alas, not yet. Closer, but not yet.