The name was intended to be (1) Danswer -> Deep (learning) Answer and (2) Danswer -> Dancer (thus the logo). Although we've heard quite a ton of different interpretations (the "dude named Dan" is quite popular, as is "Danswer -> The Answer".

The granularity is currently hard-coded (e.g. 512 tokens default chunk size, augmented with passes of 128 tokens). I have not heard of the idea of Frames, but it's interesting. Thanks for sharing - I'll probably do a deep dive sometime this weekend.