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We propose an alternative physical mechanism to explain the observedaccelerated expansion of the Universe based on the configuration entropy of thecosmic web and its evolution. We show that the sheets, filaments and clustersin the cosmic web act as sinks whereas the voids act as the sources ofinformation. The differential entropy of the cosmic velocity field increaseswith time and also acts as a source of entropy. The growth of non-linearstructures and the emergence of the cosmic web may lead to a situation wherethe overall dissipation rate of information at the sinks are about to dominatethe generation rate of information from the sources. Consequently, the Universeeither requires a dispersal of the overdense non-linear structures or anaccelerated expansion of the underdense voids to prevent a violation of thesecond law of thermodynamics. The dispersal of the sheets, filaments andclusters are not a viable option due to the attractive nature of gravity butthe repulsive and outward peculiar gravitational acceleration at the voidsmakes it easier to stretch them at an accelerated rate. We argue that thisaccelerated expansion of the voids inside the cosmic web may mimic thebehaviour of dark energy.

Configuration entropy of the Cosmic Web: Can voids mimic the dark energy?