"Well, you're not alone there. Nobody does. We know what happens, but we've no idea how it happens or how to stop it happening.

The brain develops fibrous material and this appears to prevent the electrical messages getting through which are the basis of thought and memory. We have no idea." He stopped and corrected himself. "We had no idea whether the memories were destroyed or whether they were simply irretrievable. And it was irrelevant, anyway, since they were, to all intents and ...