TL;DR
This paper discusses the historical and conceptual significance of the Wheeler-DeWitt equation in quantum gravity, despite its lack of empirical validation and initial controversy.
Contribution
It provides a critical analysis of the Wheeler-DeWitt equation's role and influence in the development of quantum gravity theories.
Findings
Highlights the equation's conceptual importance
Examines its impact on quantum gravity research
Discusses its unresolved issues and controversies
Abstract
Disavowed by one its fathers, ill defined, never empirically tested, the Wheeler-DeWitt equation has nevertheless had a powerful influence on fundamental physics. A well deserved one.
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