>The whole goal was flexibility in programming, and trying to push as much of the programming capabilities up to the game developer level rather than having them have to go into the engine as we could, and decoupling graphics and so forth to the point where you could keep extending the graphical capabilities.

I was under the impression that this was not the case, and that the reason Sierra games run poorly on Amiga/Atari was that they could not use the custom chips in those machines.

Compared to the Lucasarts interpreter that ran really well on all kinds of hardware, and even allowed the switching of old-school graphics to special-edition to be easily implemented.