Tried to explain to Prof and Wyoh sorts of memory a thinkum has—permanent memories that can’t be erased because patterns be logic itself, how it thinks; short-term memories used for current programs and then erased like memories which tell you whether you have honeyed coffee; temporary memories held long as necessary—milliseconds, days, years—but erased when no longer needed; permanently stored data like a human being’s education—but learned perfectly and never forgotten—though may be condensed, rearranged, relocated, edited—and last but not finally, long lists of special memories ranging from memoranda files through very complex special programs, and each location tagged by own retrieval signal and locked or not, with endless possibilities on lock signals: sequential, parallel, temporal, situational, others.