Much of this playback reminded me of watching my metrical-verse generator run: a backtracking search editing just the end of the text (or the paragraph anyway),

Much of this playback reminded me of watching my metrical-verse generator run: a backtracking search editing just the end of the text (or the paragraph anyway), getting stuck for a while on a difficult rhyme before backtracking further, etc. Neat. (Of course this human wasn't limited to that one style of composition.)