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Cosmic Queries – Bits of Spacetime with Janna Levin
StarTalk Radio
Scale and Fundamentals in Universe Perception
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The plank length indicates the scale at which the universe's behavior unveils certain revelations, highlighting the point at which ideas break down. At the plank energy scale, quantum gravity description suggests that space-time might be quantized or manifest as tiny loops of string from string theory. Even at large scales described well by general relativity, the theory could be reformulated in terms of particle interactions rather than the conventional geometry of space-time, representing a macroscopic manifestation of a more fundamental reality.
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