The universe is filled with paths not taken, the vast array of structural possibilities that failed to manifest physically. These unactualized trajectories are the ghostly limbs of the cosmic tree, invisible branches lacking any physical substance.

It must be stated with clarity that these shadow branches do not possess any physical mass, thermodynamic energy, or biological life. They exist in the same way the number five exists—as concepts, not tangible objects.

https://www.researchgate.net/publication/402126604_A_Unified_Theory_of_Non-Archimedean_Ontology