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This is the second paper in the series that confronts predictions of a modelof the landscape with cosmological observations. We show here how themodifications of the Friedmann equation due to the decohering effects of longwavelength modes on the wavefunction of the Universe defined on the landscapeleave unique signatures on the CMB spectra and large scale structure (LSS). Weshow that the effect of the string corrections is to suppress $\sigma_8$ andthe CMB $TT$ spectrum at large angles, thereby bringing WMAP and SDSS data for$\sigma_8$ into agreement. We find interesting features imprinted on the matterpower spectrum $P(k)$: power is suppressed at large scales indicating thepossibility of primordial voids competing with the ISW effect. Furthermore,power is enhanced at structure and substructure scales, $k\simeq 10^{-2-0}h~{\rm Mpc}^{-1}$. Our smoking gun for discriminating this proposal from otherswith similar CMB and LSS predictions come from correlations between cosmicshear and temperature anisotropies, which here indicate a noninflationarychannel of contribution to LSS, with unique ringing features of nonlocalentanglement displayed at structure and substructure scales.Comment: 7 pages, 4 figure

Cosmological avatars of the landscape. II. CMB and LSS signatures