On the Exact Nature of Stargates

I think we can all safely say that the Stargates are a fulfillment of Clarke's Third Law: Any sufficiently advanced technology is indistinguishable from magic. Or, you know, would be, if they were real. Because sometimes that should be pointed out.

And, normally, watching the series I generally assume that the Stargates are some sort of man-made Einstein-Rosen Bridge generated through controlled manufacture of the Casimir effect on a level beyond human comprehension. Id est, that the Ancients somehow managed to overcome the infinite gravitational pull that I am given to understand exists in the neck of these bridges, making transferability - and even communication - between the two ends of a wormhole impossible by somehow using antimatter to stabilize the whole thing without blowing us all up.

But I just finished reading Michio Kaku's Beyond Einstein today and it mentioned something called the Kerr metric, which, to borrow wikipedia's explanation:

The region beyond the Cauchy horizon has several surprising features. The r coordinate again behaves like a spatial coordinate and can vary freely. The interior region has a reflection symmetry, so that a (future-directed time-like) curve may continue along a symmetric path, which continues through a second Cauchy horizon, through a second event horizon, and out into a new exterior region which is isometric to the original exterior region of the Kerr solution. The curve could then escape to infinity in the new region or enter the future event horizon of the new exterior region and repeat the process. This second exterior is sometimes thought of as another universe. On the other hand, in the Kerr solution, the singularity is a ring, and the curve may pass through the center of this ring. The region beyond permits closed time-like curves. Since the trajectory of observers and particles in general relativity are described by time-like curves, it is possible for observers in this region to return to their past.

Or, if I'm understanding wikipedia and Kaku correctly, permits travel between two points in space without the problem of infinite gravity. Oh, the gravity field would still be immense, but a significantly advanced civilization might be able to overcome that.

I'm really basing this theory on two things. One, that it's a wormhole with a ring-like entrance, and, two, it became popular right before the Stargate movie came out.

But what do I know?