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Yes, Dear Sister, that is precisely what I am suggesting that we consider -- as a possible interpretation of how events (actually and Scripturally) transpired..
And, that does include a thriving and accomplished population of homo sapiens here on Earth, at the time that Adam and Eve were ejected from the Garden and into their midst!
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And, yes, indeed, as you so cogently stated: "I guess the answer to that question all boils down to how we deal with "the time problem"...."
Please bear with me...
I am trying to have us open our minds to the possibility that Bishop Ussher, by following the genealogies in Genesis, and, looking backwards toward the instant of creation (as we, from our spatio-temporal reference frame are forced to do) was surprisingly accurate in his dating of the creation and expulsion of Adam and Eve. (NOTE: I do not tie Ussher's date (in 'our' years) back to "The Inception").
Remember this?
In another, similar illustration and discussion, where this graphic says "Now", that one said, "The Age of Man". That is probably a better interpretation.
Following the fall of man, we, Ussher (and Scripture, itself) are bound to our reference frame, where all information (including time-related info) is transported and received at the limit of "C" -- the speed of light... And, we are restricted to only looking backward -- into the past...
As in our "Universal Now" discussion, God has no such temporal limitations.
There is zero doubt in my mind that Adam and Eve were physically formed as anatomically-modern Homo sapiens sapiens, and were uniquely, especially and Divinely created as eternal souls in the (Spirit) image and likeness of God.
There is also zero doubt in my mind that anatomically-modern Homo sapiens sapiens has occupied this planet for far more than the >ten thousand years documented on this continent. For most of that time, Homo sapiens survived as roaming hunter-gatherers.
Further, it is well-known that some groups of humans later developed nomadic animal husbandry as a supplement to hunting and gathering.
And -- it is well-documented that agriculture is a quite recent development of humankind (which, rather quickly, caused / allowed the sedentary settling of societies into towns, etc.)...
With the above in mind, here's a tidbit for further cogitation:
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What was the occupation of Cain, Eve's firstborn? And what was the occupation of Abel, her second son?
For that matter, what was Adam's livelihood?
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,,,and we're just getting started... ;-)