By virtual, it is a model. Theoretical. Fictional in a literary sense, yet planning is also a fictional activity. Taxonomies tying to certain academic “fields” are each themselves fictional things, as is the is-ness of “fictional things”.
Yet, because whatever can be conceived by humans exists as patterns in our physical brains which is part of our nervous systems that allowed action and reaction to sensory and emotional cues, both externally and internally “driven”, there is an “is-ness” to anything that can be conceived, the distinction being a mere matter of doing the same thing in the physical brain _as interpreted by_ the collective entity thing of “mind” but using different materials for its construction such that we can contain our bodies into what once was contained within a few flashes of neuronal activity.
Truly, we are already bigger on the inside. Cocky that we believe we can take what’s inside, externalize it, and fit what’s outside into what was first inside. Transcendental meditation indeed.
From that vantage point, I can approach this.
[notice my use of “mere”.
It’s actually what it all hinges upon and is probably where most of my focus will be; expanding upon the mere-ness, giving it form and shape]
Your time machine is in fact virtual at two levels; it’s more than just a holodeck; I’ve seen plans for holodecks that are far far simpler as the requirements for a holodeck are much simpler than a virtual time machine as a holodeck is all surfaces and pressures. In short, I like the scales you’re working with here.
although this may be using phonons to detect photon activity rather than gravitational yet it’s likely the internal communication system would need to be photonic, so using diamond cavities still makes sense.