Stuff we all know but are not happy to recall or if we do what is it we recall some implanted information that is arguably from the past but not arguably an event of social interaction but one of brain-washing and reprogramming

"In virtual reality, the brain's low level perceptual system does not distinguish between the virtual and the real world; the brain takes what it sees and hears in a surrounding environment as given," added Prof Slater.

"Therefore, if they had an experience with the illusion of time travel, there is implicit learning that the past is mutable, that is: 'my own past decisions don't matter because they're changeable'."
http://www.bbc.co.uk/news/science-environment-28852538