Originally Posted by
Bored at 3:00AM
Like I said, the why's are already there and get brought up pretty regularly, usually when they reference Earth-0 as being the keystone of the Multiverse.
However, much like I don't particularly care for Hal being referenced as "The Greatest Green Lantern", I don't really want Earth's importance to require a long preamble. Earth's importance to the larger DCU should be self-evident by now. Its past history, particularly those of its defenders, should speak for itself.