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This means that it does not assume any preexisting arena (dimensional space), but rather attempts to show how the [[spacetime]] fabric itself evolves.
There is evidence <ref>
{{cite journal  last=Loll  first=Renate year =2019 title = Quantum gravity from causal dynamical triangulations: a review  journal = Classical and Quantum Gravity  volume = 37  issue = 1  page = 013002  doi = 10.1088/13616382/ab57c7}}</ref>
that at large scales CDT approximates the familiar 4dimensional spacetime, but shows spacetime to be 2dimensional near the [[Planck scale]], and reveals a [[fractal]] structure on slices of constant time. These interesting results agree with the findings of Lauscher and Reuter, who use an approach called [[Asymptotic safety in quantum gravity#Quantum Einstein Gravity (QEG)Quantum Einstein Gravity]], and with other recent theoretical work.
== Introduction ==
