PHD Discussions Logo

Ask, Learn and Accelerate in your PhD Research

Question Icon Post Your Answer

Question Icon

1 year ago in Physics By Shobha

Why might General Relativity be wrong or incomplete?

In what ways does General Relativity fail to provide a complete description of reality, particularly at quantum scales or for the universe's expansion?

All Answers (1 Answers In All)

By Aamir Answered 1 year ago

While spectacularly successful, General Relativity is fundamentally incompatible with quantum mechanics (describing the very small). It breaks down inside black hole singularities and at the universe's birth—points requiring a quantum gravity theory. Observations of dark energy and the galaxy rotation problem (leading to dark matter hypotheses) also suggest our gravitational model may be incomplete on cosmic scales. It's less "wrong" than an incomplete piece of a larger theoretical puzzle.

Your Answer