Best bit of information I've had from science for a long time, excellent. Thanks.
I note from Henry Molaison case that the cortex needs the hippocampus to form memories in the first place, it can't on its own as if it is a series process not a parallel one. I also wonder what could block the links between them as a natural coarse of things - i.e. without damage - to stop the long term memory from forming. The other thing is how do we alter our long term memories to form false ones - does this start in the hippocampus somehow and then change the cortex one....?