Soliloquy

so·lil·o·quy

1. A dramatic or literary form of discourse in which a character talks to himself or herself or reveals his or her thoughts without addressing a listener.
2. A specific speech or piece of writing in this form of discourse.
3. The act of speaking to oneself.

Tim says this this is like a Shakespearean soliloquy, an aside, and that though Mole probably wouldn't admit it there are often those theatrical devices in his work. He sets up the camera to film himself reading around the text. To improvise a voice in the act of speaking to itself.