Abstract
We investigate the question of the suppression of the CMB power spectrum for the lowest
multipoles in closed Universes. The intrinsic reason for a lowest cut-off in closed
Universes, connected with the discrete spectrum of the wavelength, is shown not
to be enough to explain observations. We thus extend the holographic cosmic
duality to closed universes by relating the dark energy equation of state and the
power spectrum, showing a suppression behaviour which describes the low 
features extremely well. We also explore the possibility to disclose the nature of the dark
energy from the observed small CMB spectrum by employing the holographic idea.
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