Ah-ha!! Now that I know that dark=material and the other vibration/addiction thing, I understand. Just words.
I would probably say that the material world was more solid or heavier or lower frequency...but you say 'dark'! Okay.
I am totally with you on the physics level. It's unbelievable that the physics guys have been soooo onto this for so long now - yet the public is still so far behind. But we're catching up. Yes! Our own Beliefs change the world around us (as well as ourselves - so we cannot limit ourselves/the world) And I fully agree about Intention! (that's the whole 'energy follows thought' thing)