Ok, say you are an average 30 year old person. You are abducted by some scientists who erase your memory and plant false memories, say, of you being born as an alien from another planet. Would you actually "go back in time" and to you, in real time, be born as an alien on another planet? Or would you just remember being born as an alien and never in perceived realtime being born as an alien.
When false memories are implanted using current technology, the victim doesn't suddenly have fully formed memories right away. At first, the recollection is vague and imprecise. But each time the fake event is recalled, details get added, until eventually the victim ends up with a complete, logical narrative for the memory.
So say i implanted you with the memory of being raised on an alien planet. You don't immediately go back and assimilate that lie into your memory as soon as i give it to you. At first, you'll believe me, but you won't be able to remember any details. But eventually, after you've had time to "recall" the event - without me giving you any more details at all - you will begin to "recall" lots of specific details about being raised on an alien planet, like things that happened, the colours of the place, the shapes of the buildings and so on. You will remember being there, even so far as fake memories of perceiving it in real time and "remembering" what you were thinking and feeling at the time, and you will be absolutely convinced that they are real memories.
Very, very intriguing. I think this leads to the paradoxial question: How do we know "real-time" is nothing more than a planted memory?