There's so much in this guy's story that he is not and yet should be questioning that it's really not even worth talking about.
When people 'remember' the information is not resident in their brain. The brain works more like a radio receiver and the information is contained in the metaphysical 'field'. The information of remembering is not resident in the 3D physical reality.
This is logical as when a unit of consciousness moves on to 5D and does a life assessment they have access to their memories. If the memories died with their 3D bodies, there could be no assessment.
Since the information relevant to remembering is not a part of 3D reality, then whether the person 'dies' or there is a change in 3D reality that is inconsistent with the information - the information still exists in the field.
It appears that there may be people that can still remember experiences (by accessing the field) of a 3D reality that no longer exists. If that is so, then why is the 3D reality being changed? Is it a 'multiple time-line' existence? Is it the system giving clues about the illusion of this holographic virtual reality? Is it other 4D forces that are modifying the 'group consciousness/consensus reality'?
I don't know the answers, but in this time of shifting consciousness it seems like a good topic to discuss.
Are there any other people on the forum that have had similar experiences of a shifting reality?