Briefly explain the 'Hoyle-Narlikar Theory of Gravity' developed by Prof. Jayant Narlikar and Sir Fred Hoyle. How did it impact the contemporary discourse on the origin and fate of the universe?

The Hoyle-Narlikar theory of gravity was developed to shed a theory of gravity. Explanation: (1) Defined gravity as an attractive force behine masses (2) Tried to account for quantums phenomena in gravity (3) Established connections with other fundamental forces and effects (4) Accounted for finite speed of gravitational waves as mentioned in Einstein's theory of General Relativity

Role in shaping contemporary discourse: (1) Important tool for discussing state of early universe during big bang (2) Provides insight into detailed gravitational phenomena near big bang (3) PSuggests head-death model for fate of universe (4) Gradual decline in stellar activity (5) Expansion of universe leads to cooling (6) Maximum entropy principle will lead to homogenized white dwarfs Hence the Hoyle-Narlikar Theory is a significant progress in understanding gravitational phenomena of our universe.