psychologically, i.e. by interview or memoir writing on the extraction side and "brain-washing" on the implanting side,
I would expect recreating a mind from interviews and memoirs to be about as accurate as building a car based on interviews and memoirs written by someone who had driven cars. which is to say, the part of our mind that talks and writes is not noted for its brilliant and detailed insight into how the vast majority of the mind works.
Good point.
I suppose it boils down to what you include when you say "mind". I think the part of our mind that talks and writes is not very different from the part that thinks. So, if you narrowly, but reasonably, define the "mind" as only the conscious, thinking part of our personality, it might not be so farfetched to think a reasonable reconstruction of it from writings is possible.
Thought and language are closely related. Ask yourself: How many of my thoughts could I put into language, given a good effort? My gut feeling is "most of them", but I could be wrong. The same goes for memories. If a memory can not be expressed, can it even be called a memory?
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