Worth the time - physicsworld.com

Worth the time - physicsworld.com

"The subject of Dan Falk's In Search of Time is actually one step beyond these deeply perplexing mathematical questions. While we might think we understand time, unlike the "solidity" (and, dare I say it, the timelessness) of the above mathematical problems, there is absolutely nobody on Earth who knows what time is. Or, for that matter, if it even exists. Falk is frank about this right from the start, beginning with St Augustine's famous lament in his Confessions: "What, then, is time? If no-one asks of me, I know. But if I wish to explain to him who asks, I know not.""

Everett@50 - Interpretation of Quantum Mechanics: 50 years on

Everett@50 - Interpretation of Quantum Mechanics: 50 years on

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Some remarkable implications of probabilities without time - Andreas Albrecht

I consider the ambiguity in quantum gravity that arises from the choice of clock. As I emphasize in earlier work (gr-qc/9408023) this ambiguity leads to an absolute lack of predictability for the laws of physics, or more specifically a complete absence of physical laws. I review the clock ambiguity and then consider possible ways forward given this seemingly critical failure. Remarkably, there is an approach that could lead to a certain amount of predictability in physics. I describe this approach and assess its prospects. I also draw attention to possible flaws in the original assumptions on which the clock ambiguity is based, with special emphasis on the definition of probabilities in the absence of time."