Showing papers by "John Archibald Wheeler published in 1992"

Recent Thinking about the Nature of the Physical World. It from Bit

Abstract: How can we move ahead on these foundational issues? Hardly better than under the guidance of a working hypothesis. There is one that has survived much winnowing. It animates and steers this report. This account therefore not only begins with questions. It ends with questions. The central point? The thesis it from bit: every it, every particle, every field of force, even the spacetime continuum itself, derives its way of action and its very existence entirely, even if in some contexts indirectly, from the detector-elicited answers to yes or no questions, binary choices, bits. Otherwise stated, all things physical, all its (FIGS. 1 and 2), must in the end submit to an information-theoretic description. Can rocks, life, and all we call existence be based on something so immaterial as yes-no bits of information? Such an account, if ever we

Physics in knots

Abstract: In this report the authors work out the relevant it-form-bit means to measure spacetime curvature. Also described are the essential new features of the knot description of gravity and the one index loop variable and the Einstein tensor. (LSP)