December 22. I get a little impatient when I set my vacuum robot and my mop robot down somewhere in the apartment and press CLEAN. Have they learned the floor plan correctly yet? Do they notice which room they are in? Have I moved enough stuff out of the way? I don’t want to worry about that anymore, especially after the recent progress in writing essays and drawing pictures. Today, I just kept sitting at the piano. My robot vacuum nudged me several times and finally ran the rotary brush over my foot, which felt like a thousand crabs.