If I may ask one more question, would you happen to know if the authors or other researchers who are entertaining any theoretical work on the experimental design and training methodologies of GPT/BERT? As in why does it work? What is the significance of training via the "fill-in-the-blanks" method?
Don't get me wrong - the work is great and the SOTAs are amazing, I would be just happy to have a chat to discuss and bounce some ideas what all this means and why do these methods seem to be working so well. Papers/articles/blog-posts are always a pleasure to read!