When conversing, I often find myself using words or conveying ideas that I wasn't aware that I knew, nor whether these words/ideas were actually relevant to the conversation. It is only after googling these words that I realise that indeed they are relevant.
I also find myself remembering some particular information which I was adamant that was no longer in my memory. This is often triggered some some string of events, seemingly deterministic in nature, in such a way that if those particular set of events weren't sequenced into the order they were, I would never remember that.
This leads me onto how we humans actually memorise? Is the deterministic nature of the brain's neural network relevant to the randomness of memorization?