User blog comment:Ralok/forerunners/@comment-halo/@comment-160529-20100308163009

Well first anonymous user that is indeed a possibility, but they dont say that.

Origins shows things, things that are told from the percpective of cortana, and many things that arent necessarily true.

Here is a possibility maybe earth was chosen as the place to resettle because it had a population of primitve forerunners descended from shipwrecked survivevors

or maybe earth happened to be the forerunners home before but when they resettle they simply decided to live modestly like some of the members of their species on their homeworld decided to

what i know though is what the primary games told me and although it has a consistant universe the games are the core of the continuity, and in the game they specifically say humans are forerunners.

any other opinion is just supposition