Transformers and Muppets together and the reason for this is that the original paper on this technique that describes the network architecture it was called the transformer network and then the Bert paper is a muppet news and Elmo paper and you know researchers just run with the joke um so this is just context you understand what people are talking about if they say well use them up in network so this I think it was the natural progression of the sequence of document models and it was the transformer model was first described