It's not a fantasy, the Amiga was a real platform. It was also one of the last systems that could be just about simple enough to be comprehensively documented a

It's not a fantasy, the Amiga was a real platform. It was also one of the last systems that could be just about simple enough to be comprehensively documented and understood, making for a kind of openness-focused DevX that's quite unparalleled even to this day. For that matter, there's plenty of "dead" technology out there that still retains quite a bit of educational value if nothing else.