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P.S. What "Separates" spacetime at Quantum scales?

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P.S. What "Separates" spacetime at Quantum scales?

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ohwilleke

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The second question is more philosophical. In a discrete space-time it is assumed that distances and times come in fixed irreducible chunks.

One attraction of a discrete space time flows from how renormalization is done. Without renormalization, QM equations "blow up" into infinitities, while renormalization sets an arbitrary and consistent cutoff to prevent that from happening and this provides real answers. A discrete space time elevates renormalization from being a mere mathematical trick to an actual feature of space time, and since there is a naturally plausible set of discrete spaces and times (the Planck scale) it is plausible to look to that as the cutoff.

Discrete space-time theories like causal set theory, CDT and LQG all approach quantum gravity from the point of view of time space following GR which views gravity as a time-space curvature issue, rather than from the QM approach of creating a graviton.

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Best Regards

DaTario

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Logically a Macro entity by virtue of size, will always have this as a limit to "hitting-quantum-targets", for instance if you have two marble's, one the size of Earth and one 'normal' size, then the Earth size will have a problem colliding with a small 'normal' size marble. Conversely, a normal size marble will have no problem at all in being directed to a marble the size of Earth.DaTario said:

Quantum entities have no HUP factors when being directed at Macro Targets, they are sure-fire probable certainties in hitting their targets.

HUP has a 'two-size' dependant principle factoring

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