Magic vs Religion? Easy, in a way. If it's your religion, it's Miraculous. If it's
useful to your religion, but not necessarily
of your religion, it's magic.
If it's somebody else's religion, it's black Sorcery.
Sam Clemens commented on the thing: "Mankind has found the one, true, way; several of them, in fact."
Magic can be explained by the so-called Transistor effect: A small, low voltage can control a much higher voltage if the proper conditions (such as a semi-Conductor material) exist. Magic postulates that certain materials, mental states, and ceremonies can provide this "Semi-conductor".
As to the age of the Earth, it's really less important as to "how long it's been here", than to "how long will it be habitable for humanity?"
If there's no humanity, then the whole question's moot, isn't it?
Even the Creationists agree with that.
KMacK...
"You don't have to be invisible when everybody is looking the wrong way..."
Writing the series "Wulfen Blood"... getting ready for publication.