Some Uncomfortable Thoughts on the Nature of Gravity, Cosmology, and the Early Universe

TL;DR

This paper critically examines current concepts in gravitational physics and cosmology, questioning popular notions like inflation and gravity as geometry, and proposes new perspectives for future research.

Contribution

It offers a critical analysis of prevailing ideas in gravity and cosmology and suggests alternative approaches to address existing theoretical difficulties.

Findings

Challenges to the notions of inflation and gravity as geometry

Proposed new perspectives for understanding gravity and the early universe

Identification of conceptual difficulties in current gravitational theories

Abstract

A specific theoretical framework is important for designing and conducting an experiment, and for interpretation of its results. The field of gravitational physics is expanding, and more clarity is needed. It appears that some popular notions, such as `inflation' and `gravity is geometry', have become more like liabilities than assets. A critical analysis is presented and the ways out of the difficulties are proposed.