When this thread was last most active, we knew very little, far more has become known since, there's still unanswered elements admittedly.
I suppose we could establish a thread dedicated to this area of discussion (or renew this one), but it seems redundant when:

(1)
We already have threads where we can (& do) discuss such subject matter
(2)
We're not likely to get the final pieces to the puzzle until after the 1st device is out
(We've been given several explanations as-to-why that's the case...)