I generally understand that the average base-liner regards the Eve-gate as a myth if they've even heard about it. That even mention that humans once traveled from a place called Earth to the New Eden star cluster was a myth and fantasy.
At the same time, there are the Eve trailers of past/present - which share a story directed at players, telling them of how humanity originated far away upon the planet named Earth. That humans via the Eve Gate came to New Eden & settled here, and traversed the eve-gate back/forth until one dark moment when the gate collapsed, giving way to a gradual dark age. Where science and civilization fell to nothingness before drawing itself up and back into space. This i understand, took a vast quantity of time to transpire.
Well, if I understand both sides of the Eve story correctly from an IC / OOC setup point of view, - how have the peoples of New Eden grappled with the fossil records of their respective planets? That they are all genetically compatible. That no, it would seem that they did not originate on their home planets. And further, that no, they were not alone in the universe.