TL;DR
This paper presents a Machian model of dark energy that aligns with Mach's principle, explaining current cosmological observations and suggesting a potential link between Mach's ideas and the cosmological constant.
Contribution
It introduces a specific Machian kinematical $ extbackslash Lambda$ model derived from spacetime microstructure, offering a novel approach to dark energy and the cosmological constant problem.
Findings
Model explains current cosmological observations successfully
Proposes a link between Mach's ideas and the cosmological constant
Highlights benefits over conventional dark energy models
Abstract
Einstein believed that Mach's principle should play a major role in finding a meaningful spacetime geometry, though it was discovered later that his field equations gave some solutions which were not Machian. It is shown, in this essay, that the kinematical models, which are invoked to solve the cosmological constant problem, are in fact consistent with Mach's ideas. One particular model in this category is described which results from the microstructure of spacetime and seems to explain the current observations successfully and also has some benefits over the conventional models. This forces one to think whether the Mach's ideas and the cosmological constant are interrelated in some way.
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