[greatfilter250]

> worldwide distribution

Why does an industrial civilization need to be global?

Our industrial civilization appeared extremely quickly, perhaps in the past 300 years, but it happened to appear within a preexisting global trade and travel network. An industrial civilization which existed for a few hundred years, outside the context of such a network, might not ever see the need for one.

[Nasrudith]

Industrialization would increase demand for raw materials and heavily encourage expansion even if not required per se. Self-sufficiency of a single area becomes more difficult as technological complexity rises as well. Let alone demand for the "exotic" materials like rubber or even bronzemaking needing tin for their copper or visa versa. (The two seldom occur within different geologies seldom close to one another.)

[inglor_cz]

If the beings that created it were capable of living across the globe, and not limited, say, to the equatorial region, it is somewhat likely that such civilization would diffuse much like human industrial civilization did; older, less efficient societal structures would be unable to compete with it.