[quote=@ClocktowerEchos]
<Snipped quote by Vordak>

Mind if I ask how it would "greatly limit what we can do with it down the road"? I'm curious on how exactly something like the Warp/Noosphere/Arcanum would limit us.
[/quote]

Well, it restricts use of potent magic only to those capable of zealous belief, obviously, that's one thing just off the top of my head. It also becomes difficult to draw a line between an actual science, with an underlying logic, and just plain superstition, if belief is all that is needed to interact with magic. Those two aspects are something we may or may not want, depending on the setting: it is fitting in WH40k, since that universe benefits from a grimdark setting with mad zealots, devotees, pious religiousness and constant war, but i don't think it's applicable to everything.

Also, i must correct you - the noopsphere is a concept strictly related to thought and has nothing to do with magic on its own; thought of course, we can choose to establish a connection between the two.

EDIT: no, really. is that passive aggressiveness oozing from your post, or is it just me being too touchy?