>>54830434That's the thing, we don't have any conclusive information. It'll be a paradox with no one true answer.
Time travel? Go wild, it's all right there from what the logical genius of the AI professor offers us, and we can deduce that maybe someone else a billion years in the future when humanity develops the tech to restart the time machine without any of the adverse side effects of the professor's programming, and they decide to throw a Paradox Donphan back in time for shits and giggles.
Some manner of reality-bending to make the ideal real (dreams/imagination/wishes/etc)? Yeah, maybe, because Tera Crystals can do all sorts of miraculous bullshit like passively powering an AI that's otherwise unfeasible with current tech or causing Ogerpon to achieve an enhanced state of Terastallization, and thus the Paradox is solved because Anything Goes.
Ultra Wormholes? Probably, they brought them back for SWSH to handwave the presence of the Legendaries in Dynamax Adventures, maybe there's no paradox and they're genuinely Pokemon from other dimensions with heavy emphasis on Past/Future, thus meaning the Paradox was simply a misunderstanding from our limited single-dimension perspectives.
Arceus or one/some of its arms having a giggle again? Also possible, maybe some of the spacetime shenanigans caused by Dialga, Palkia and Giratina during the Hisui age leaked into various points in time around Paldea, like how they pulled in Ingo from Unova, and the Paradox Donphan that Heath saw was because he entered a spacetime distortion that sent him to Current Day Paldea, and thus, due to the nature of stable timeloops, that solves the paradox of Paradox Pokemon.