[Note this associates closely with Mapping vs. Diagramming]
Mind Palace, or Memory Palace descends from the Method of Loci. That is a strategy for memory enhancement first mentioned in ancient Greek and Roman texts. The concept is to associate the thing desired to be remembered with some other context: an object, a location, etc., that is more eaily called to mind. Recalling the latter provides (hopefully!) recall ofr the former, owing to the association. A series or fixed sequence of facts (e.g. the numbers of Pi’s value) can be memorised as a journey through known places.
A memory palace is innately private. I can show mine to you and I can use the same terms of reference, but our mental picture—and the palace we build from it—will likely differ (we can’t verify as we can’t see mind’s eye of another person.).
A different perspective of the same environment is as an exploratory space. Here the aim is quite different. Rather than seeking an unchanging representation of the space from visit to visit, the desire is for flexibility to foster serendipity and engender different perspectives of the same information.
Thus, is a conversation about an XR space, effective discussion can founder as the (unspoken) expectation of the purpose of the space is so different. With two people at the extremes of this axis the cause of confusion may be easily evident, but ifs participants in the conversation are towards the middle, the cause can be harder to spot even though the same mutual incomprehension may occur.
Back to XR spaces: differing perspectives.