[crimsonalucard]

>Imagination itself is only limited by our technological progress and there are few limits beyond physics itself to stop us there.

What is the difference between the natural world and physics? I would argue that there is no difference. I use the language "natural world" as a synonym for "the nature of existence" and "physics." I would assume that in your vernacular, the meaning is the same.

Thus your own statement above validates My argument. You state physics limits technology and technology limits the imagination. Thus in turn imagination is limited by physics. This is exactly my argument.