Kip Thorne Quotes: We're going to need a definitive quantum theory of gravity, which is part of a grand unified theory - it's ...

We're going to need a definitive quantum theory of gravity, which is part of a grand unified theory - it's the main missing piece. (Kip Thorne)

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Kip Thorne Quotes: We're going to need a definitive quantum theory of gravity, which is part of a grand unified theory - it's the main missing piece.

Kip Thorne Quotes: We're going to need a definitive quantum theory of gravity, which is part of a grand unified theory - it's the main missing piece.

Kip Thorne Quotes: We're going to need a definitive quantum theory of gravity, which is part of a grand unified theory - it's the main missing piece.

Kip Thorne Quotes: We're going to need a definitive quantum theory of gravity, which is part of a grand unified theory - it's the main missing piece.

Kip Thorne Quotes: We're going to need a definitive quantum theory of gravity, which is part of a grand unified theory - it's the main missing piece.

Kip Thorne Quotes: We're going to need a definitive quantum theory of gravity, which is part of a grand unified theory - it's the main missing piece.

Kip Thorne Quotes: We're going to need a definitive quantum theory of gravity, which is part of a grand unified theory - it's the main missing piece.

Kip Thorne Quotes: We're going to need a definitive quantum theory of gravity, which is part of a grand unified theory - it's the main missing piece.

Kip Thorne Quotes: We're going to need a definitive quantum theory of gravity, which is part of a grand unified theory - it's the main missing piece.

Kip Thorne Quotes: We're going to need a definitive quantum theory of gravity, which is part of a grand unified theory - it's the main missing piece.

Kip Thorne Quotes: We're going to need a definitive quantum theory of gravity, which is part of a grand unified theory - it's the main missing piece.

Kip Thorne Quotes: We're going to need a definitive quantum theory of gravity, which is part of a grand unified theory - it's the main missing piece.

Kip Thorne Quotes: We're going to need a definitive quantum theory of gravity, which is part of a grand unified theory - it's the main missing piece.

Kip Thorne Quotes: We're going to need a definitive quantum theory of gravity, which is part of a grand unified theory - it's the main missing piece.

Kip Thorne Quotes: We're going to need a definitive quantum theory of gravity, which is part of a grand unified theory - it's the main missing piece.