Theorizing on Idendity of Sphere bulders / Temporal cold war villain. SPOILERS.
This site is where I go to in order to see discussion on Star Trek stuff, and I'm suprised the latest Enterprise episode hasn't formulated a lot of discussion on the identities of both the sphere builders and the mysterious temporal cold war villain. I don't know, maybe this stuff is clear to everyone, but with your permission I'd like to bounce the theory I had while watching the episode off of you all:
The Temporal Cold War Villain and the Sphere Builders are the same. They are the Borg.
Once I thought of this, everything in the episode, even small details, seemed to support this. Albeit in clear but non-blatant ways. Let's see if I can remember all the details that leapt out at me: The Xindi weapon plot is very like the Borg's plot in "First Contact", just better planned and with more lead time, not the last-moment backup plan it was in FC. In short, given that the Borg have time travel technology as shown in FC, why the heck didn't they use it when Picard's Enterprise isn't right in their Temporal Wake? They did, and Archer is now experiencing the result.
Note this makes PERFECT SENSE out of a confusing, non-sensical throw-away line in FC: Picard is confused why the Borg Queen hadn't perished back when his Enterprise destroyed the Borg Cube she was on back in BEst of Both Worlds. She answers to the effect of, "you're thinking too 3-dimensionally." Now, here in this Enterprise episode we see the Sphere builder talking to herself, a trivial feat if you have time travel. Clearly, that conference was between the various "hers" from different points in time. Thus, with enough jumping about the time continioum, you can have one Borg Queen perish in Best of Both Worlds and the same one still be hopping around to be seen "later" (from our reference frame) to be encountered in FC and Voyager.
All sorts of other hints and details supported this. First, the Sphere Builder's garb is very reminiscent of the Borg Queen's, particularly at the interface of her skin and the suit. In fact, it looked to me like a less advanced version of the Borg Queen's interface from First Contact. Second, the Xindi space-warping Spheres certainly fit the Borg design aethetic. Finally, not carefully the speech she gives to the Reptilian Xindi: "You are destined to become a great race, unifying and concouring all" etc etc.... yeah, become a great race, by becoming Borg! Note I'm not suggesting the Xindi are the Borg predecessors, we know that's not their origin, but rather that her words will become true when they are assimilated. Finally, of all the threats we know about, the Borg are the most likely to be causing the sort of time travel shennageans which would make the future Timefleet and Daniel be Archer's secret patron....
What do you think, sirs?