Theory of everything

The goal is a single framework capable of describing all fundamental forces and particles. This topic is part of Theoretical Physics within Science & Nature. This page currently draws on 4 supporting questions, with answers and bonus facts available below.

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Theory of everything trivia questions

A "theory of everything" would aim to unify quantum physics with what other major theory?

Answer: General relativity

Bonus fact: The goal is a single framework capable of describing all fundamental forces and particles.

Which force remains outside the Standard Model and is therefore a major obstacle to a theory of everything?

Answer: Gravity

Bonus fact: General relativity describes gravity extremely well on large scales, while quantum theory governs microscopic physics.

Which two research programs are among the best-known attempts to move toward a theory of everything?

Answer: String theory and loop quantum gravity

Bonus fact: The two approaches differ sharply in how they attempt to quantize spacetime and gravity.

A grand unified theory tries to combine which fundamental forces?

Answer: Strong, weak, and electromagnetic forces

Bonus fact: A GUT does not usually include gravity, so it falls short of a full theory of everything.

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