Arrows of Time for Large Language Models

[nyoncore]

Isn't it obvious that since LLM are trained to predict the next word they do better than to predict the previous one?

[frotaur]

In the paper it is mentioned that the LLMs predicting the previous token are indeed pre-trained in this way, so it is not true that the difference is obvious.

[tianlong]

There is a link with entropy creation?