User blog comment:Bluegear93/What if there were no Geth?/@comment-118213-20111023182556

Eden Prime probably would still have been hit, just by some other pawn of Seren and the Reapers - such as the Collectors. But if this happened it would be unlikely that Tali and Shepard would have met, thus proving Seren's guilt to the council would have been far more difficult - if not impossible.

Shepard may never have found out about the reapers and Soverign's attack on the citadel would have been successful and the Reaper invasion accelerated, the Galaxy would have been caught off guard and its unlikely they could have defended themselves.