Indeed, and it seems like they would really struggle to output coherent text at all if there was not some kind of pre-planning involved (see how even humans str

Indeed, and it seems like they would really struggle to output coherent text at all if there was not some kind of pre-planning involved (see how even humans struggle with it in games where you have to construct a sentance by having each person shout out one word at a time). Even GPT-2 likely had at least some kind of planning for the next few words in order to be as coherent as it was.