I don't like to think of it as "making" dimensions.
I like to think of it like the multiverse theory and you're just creating links between existing dimensions.
I could be completely wrong, but isn't the whole concept around Mystcraft the fact that you are 'creating' dimensions? I do like your theory better - the multiverse theory is indeed fun to think about.
In fact...
Hey! Mystcraft dev! Get working on a 'You're Dating Emma Watson' page! I'm sure that'll make a lot of people learn Mystcraft really fast.[DOUBLEPOST=1403306065][/DOUBLEPOST]
So does a Land of Blocks and Miracles. Minecraftian styling, but with ICP playing music here and there, and a Faygo river that changes flavor when you think of a flavor.
'DO NOT THINK ABOUT CRAP, DO NOT THINK ABOUT CR-... DAMMIT.'