Is Earth an experimental laboratory?

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I’m sure the idea titled above has been worked to death by sci-fi writers. (Name any book or story you’re familiar with, that exudes the lab idea, in comments here.)
 
The problem, for me, with the idea – which also factors, somewhat, in my Yahweh thesis on Substack – is that Earth is a pitiful example of a planet in the cosmos, on first encountering it, superficially.
 
But any scrutiny by a super sentient species or “divine” entity allows for the possibility that our planet could well serve as a laboratory for experiments of all kinds; it might even have been transfigured for that very purpose, billions of years ago.
 
This would preclude any idea of the Matrix scenario or any Ancient Alien hypothesis. It would be a premise supported by an accep- tance of a reality that includes the concept(s) of a master intelli- gence operating within the Universe, an intelligence we would be better to call something other than God, in order to avoid a schmaltzy patina-like that which is already abundant in human thought.
 
The many universes hypothesis opens the possibility that Earth is a test laboratory by something(s) greater than that which is our immediate reality.
 
(The hypothetical many dimensions concept also would apply.)
 
My point here isn’t to be a chintzy sci-fi exploiter but is rather meant to curb or dilute the UFO ideas of an ET explanation or Time-traveling humans from our future scenario or the suggestion that Earth contains a hidden crypto-terrestrial species inserting itself in the process of humanity threading itself along an evolu- tionary line or deterministic course (provided by a malevolent deity).
 
Rather, I’d hope that some reading this may have some ideas about how or why something or somebody would establish Earth or use it as a testing laboratory of some kind, and to what end or purpose.
 
RR