In re-reading the
interview I conducted with bluealien.org at GenCon, I realized that I made a comment regarding RedBrick's upcoming
Equinox game that could be misinterpreted due to my poor wording. Such is the nature of interviews.

As I was trying to explain, some of the original ideas for
Eclipse Phase started back when I was working as the line developer for
Shadowrun, which is actually part of the same universe as
Earthdawn. Both games were originally published by FASA Corporation. According to their shared cosmology, magic flows in and out of the world, and each magic-rich or magic-poor cycle is counted as a different age.
Earthdawn represented the Fourth World, at the peak of its magic cycle, while
Shadowrun represents the beginning of the Sixth World, when magic is just returning.