>>53066205>XY made it pretty clear that it was a recent discoveryWrong. Skymore was researching Mega evolution for a while.
Quote by professor Cozmo:
Oh! Why, hello again! What good fortune... I'd been thinking that if I saw you again, I would want to give you this..."
"I happened to pick this up some time ago, while doing excavation at Meteor Falls. I hoped it might help you and your team along on your journey. But I'm still astounded by it all. A relationship between the Mega Stones, Key Stones, and the Meteorites... My, but new facts do come to light every day! This is what makes my research feel worthwhile! I know a man, a dear friend in the Kalos region, who has been researching Mega Evolution. We worked together a few years back here at Meteor Falls researching Meteorites. I'll have to share this information with him at once. It might propel his research forward, and help future Trainers and Pokémon. I hope it does."
Oras makes it pretty clear that the games without megas are played in a seperate world than those with it.
