>>49818111Every Pokemon protagonist is an inexplicably great prodigy. Rei and Akari aren't special in this regard. With that said, Ingo at the very least remembers his name. You could argue that because he came with his ordinary clothes on he had some form of identification on him, but that's the type of overreach that makes fan theories less valid because it does the writing on behalf of the game.
In truth, Ingo's presence and Rei/Akari's overwhelming physical similarities to Lucas and Dawn are more than sufficient in suggesting that the PLA Protagonist is the same character as the DPPt/BDSP Protagonist. This may in fact tie into why the two games were released so closely together. Explicitly stating it isn't really necessary and it gives fans more things to talk about.
Also
>But if you want to customize your character and pretend like it's not related to a previous game you might not have even played, the details are vague enough to let you pretend otherwise.This. The intention is obvious here.
Posts like
>>49816156 this are made by people who vehemently dislike anything new and don't want their precious memories tarnished, or trolls. But you would have to be a genuine ignoramus or dealing with some kind of mental issue to think the two Protagonists aren't the same character when all the context clues are there.