Kristoff sat Cassandra down in a fairly comfortable seat amidst a bunch of lab equipment. Scotty was with his grandfather.

"As far as we have been able to ascertain, this is the situation: fortunately, the reason the neural encoding changes caused by the nanites seem to have taken so long after they were introduced to start affecting you is that they have to constantly maintain their effects; nothing has been permanently neurologically altered. So the gradual buildup of noticeable problems required some time. And once we use the right series of radiation to take the nanites out of the equation, there shouldn't be a risk of a serious negative reaction." Which was an incredible relief. Still... "Finding varieties of radiation which would do that without causing you any physiological damage has been difficult, and of course I'd rather err on the side of caution. But I've found a set of safe forms that I believe will be effective."

Assuming this worked, it would be the best conceivable birthday present to himself ever.