Using techniques from loop quantum gravity, the standard theory ofcosmological perturbations was recently generalized to encompass the Planckera. We now apply this framework to explore pre-inflationary dynamics. Theframework enables us to isolate and resolve the true trans-Planckiandifficulties, with interesting lessons both for theory and observations.Specifically, for a large class of initial conditions at the bounce, we are ledto a self consistent extension of the inflationary paradigm over the 11 ordersof magnitude in density and curvature, from the big bounce to the onset of slowroll. In addition, for a narrow window of initial conditions, there aredepartures from the standard paradigm, with novel effects ---such as amodification of the consistency relation between the ratio of the tensor toscalar power spectrum and the tensor spectral index, as well as a new sourcefor non-Gaussianities--- which could extend the reach of cosmologicalobservations to the deep Planck regime of the early universe.
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