  Using numerical self-consistent solutions of a sequence of finite replica
symmetry breakings (RSB) and Wilson's renormalization group but with the number
of RSB-steps playing a role of decimation scales, we report evidence for a
non-trivial T->0-limit of the Parisi order function q(x) for the SK spin glass.
Supported by scaling in RSB-space, the fixed point order function is
conjectured to be q*(a)=sqrt{\pi/2} a/\xi erf(\xi/a) on 0\leq a\leq infty where
x/T->a at T=0 and \xi\approx 1.13\pm 0.01. \xi plays the role of a correlation
length in a-space. q*(a) may be viewed as the solution of an effective 1D field
theory.
