Dropped by to see what was up, only a drive-by downvote so let me explain since you didn't. Its becomes clear by the end that the ansibles being used were crea

Dropped by to see what was up, only a drive-by downvote so let me explain since you didn't. Its becomes clear by the end that the ansibles being used were creating philotic threads throughout the universe. So the very thing they had been using for FTL communication was building a huge network. This allowed them to not only save the trees by uploading them, it akso allowed Ender to be brought to no-space where he was able to subconsciously create young Peter and Valentine. So, they ended up being central to the entire story. You're welcome.