Ah, you have some serious gaps in your understanding of how human minds work. Life experiences are not just a "short term context" - they are used to actually refine the network within the human brain. Your life experiences do not just live in a single stream with access mediated by attention.
Please see https://en.wikipedia.org/wiki/Memory as a starting point. I recommended reading through some information on development psychology too, that will help clear up these misunderstandings. Hope that helps!