  The so-called "trans-Planckian" problem of inflation may be evaded by
positing that modes come into existence only when they became "cis-Planckian"
by virtue of expansion. However, this would imply that for any mode a new
random realization would have to be drawn every $N$ wavelengths, with $N$
typically of order 1000 (but it could be larger or smaller). Such a re-drawing
of realizations leads to a heteroskodastic distribution if the region under
observation contains several such independent domains. This has no effect on
the sampled power spectrum for a scale-invariant raw spectrum, but at very
small scales it leads to a spectral index bias towards scale-invariance and
smooths oscillations in the spectrum. The domain structure would also
"unsqueeze" some of the propagating waves, i.e., dismantle their standing wave
character. By describing standing waves as travelling waves of the same
amplitude moving in opposite directions we determine the observational effects
of unsqueezing. We find that it would erase the Doppler peaks in the CMB, but
only on very small angular scales, where the primordial signal may not be
readily accessible. The standing waves in a primordial gravitational wave
background would also be turned into travelling waves. This unsqueezing of the
gravitational wave background may constitute a detectable phenomenon.
