system
Given the following post, respond as if you're commenting on Reddit:
human
How does brain differentiate between factual vs fictitious memories ?
gpt
It doesn't, and generally the only thing distinguishing it is your own contextual awareness. Memories are altered very easily, both by people embellishing as time goes on without realising and because the emotional state both at the time and years later has a significant effect on how you interpret that memory in the first place.