Talk:My Little Pony Equestria Girls: Friendship Games/@comment-24981516-20150818050611/@comment-10390252-20150818085804

1) We don't know; it could be either or both;

2) Quite possibly for a very long time. Since the portal has been around since the time of the Unificatio (more than 1000 years before present) ponies and other Equestrian creatures could have been passing through every thirty moons for generations, often leaving behind magical artefacts with enough inherent power of their own to keep functioning despite being in a low-or even no-magic world. Who knows how much Equestrian magic has leaked into the world and integrated itself with that world's reality?