Towards a holographic theory of cosmology -- threads in a tapestry

TL;DR

This paper explores how the holographic principle could unify understanding of dark energy, dark matter, and galactic dynamics, addressing fundamental cosmological questions.

Contribution

It proposes a holographic framework as a unifying approach to fundamental cosmological problems and the nature of the dark sector.

Findings

Holographic principle may explain dark energy and dark matter.

Provides a potential explanation for the smallness of the cosmological constant.

Suggests a link between holography and galactic acceleration phenomena.

Abstract

In this Essay we address several fundamental issues in cosmology: What is the nature of dark energy and dark matter? Why is the dark sector so different from ordinary matter? Why is the effective cosmological constant non-zero but so incredibly small? What is the reason behind the emergence of a critical acceleration parameter of magnitude $10^{-8} cm/sec^2$ in galactic dynamics? We suggest that the holographic principle is the linchpin in a unified scheme to understand these various issues.