I realised that I hardly look back at my notes from a briefing meeting when designing a presentation. The big story is designed from memory, only for facts I need to revert to my scribbles.

I guess that your brain gets used to recording stories when you design presentations for a living. When I listen to someone (more important than seeing an existing presentation) I record the information by creating a story flow in my head that is more memorable than scribbles on paper.