The reason this occurs is because of two facts about the mind that are not widely appreciated. The first is that memory is not kept in a separate store away from the rest of the mind's functions. Although there are brain regions crucial to memory, the memories themselves are not stored separately from the regions which do perception, processing and output. Unlike a digital computer, your mind does not have to fetch stored information when it needs it, instead your memories affect every part of your perception and behaviour.

The second important fact about the mind is related to the first. It is that learning something involves changing the structures of the mind that are involved in perception and behaviour. Memories are not kept in a separate store, but are constituted by the connections between the neurons in your brain. This means that when you learn something --- when you create new memories --- it isn't just *added* to your mind, but it changes the structures that make up your mind so that your perceptions, behaviour and potentially all of your previous memories are changed too.

One-shot learning is unusual. Most learning happens over a far longer
time-scale, so it is even harder to keep a grip on what it was like to
not know. All of us will have had the experience of a bad teacher who
simply couldn't see why we had a problem ...
It is because learning has this tendency to make itself invisible that teaching is such a difficult and noble tradition.

Thanks for this clip!

Thanks for this Clip! I have friends in the field of Education and this will serve as a hot topic. Thanks again!