  Quantization of the time symmetric system of interacting strings requires
that gravity, just as electromagnetism in Wheeler-Feynman's time symmetric
electro- dynamics, also be an "adjunct field" instead of an independent entity.
The "adjunct field" emerges, at a scale large compared to that of the strings,
as a "statistic" that summarizes how the string positions in the underlying
space- time are "compactified" into those in Minkowski space. We are able to
show, WITHOUT adding a scalar curvature term to the string action, that the
"adjunct gravitational field" satisfies Einstein's equation with no
cosmological term.
