Board Thread:Shingeki no Kyojin Manga/@comment-24930713-20150609084033/@comment-25322628-20150616211623

Actionmanrandell wrote: Aggression25 WHAT if the copies are mirror copies as in they have a different personality and he created them years ago like back before the wall existed many people believe the beast titan is the oldest titan and we know titan shifters can live a lot longer so maybe he created a copy hundreds of years before and that copy was actively trying to defeat the original That would have to indicate that mankind was technologically advanced enough to achieve such a feat before the Titans appeared and that they were still capable of such feats. Unfortunately, there's no indication that they can achieve this.

As for Titan shifting, it must have something to do with cellular generation being taken to extremes. Rapid cellular activity, resulting in the body of a Titan being produced.