"The [human] species will never learn to co-exist if given total freedom."

[sjel]

From what I understand the veil impedes spiritual momentum - the thicker the veil, the greater the inertia in trying to start towards one polarity or the other.

Just to be clear, I think the veil is at least intended to enhance momentum by creating more intensely polarized experiences.  However, I think it simply doesn't achieve this perfectly in 100% of cases.  I always return to the mystery inherent in all this, the idea that all of this constitutes a foray into the unknown for the Creator.

Well it does enhance momentum - for those who are able to get off the ground. What I meant by inertia is that it's much harder for native Earth entities to begin polarizing in earnest, given the veil thickness. For those who have generous spiritual momentum already accumulated (generally wanderers), the inertia of already being in serious motion gives them an edge.

I'm picturing Juggernaut, from the Marvel universe. When he starts off running he's excruciatingly slow at first - like human speed. When he finally starts to pick up speed, fewer and fewer objects can stop him. At maximum speed, literally no physical object can slow him down. But it takes him a looong time of slow acceleration to get to that point.