Hi Simon
Thanks for your answers.

In regards to #1: I get what you’re saying. Fair point.
In regards to #2: how do I know the length of the generated sequence apriori?  What tensor dimensions should I feed it? And with what values?
In regards to #3: I agree that doesn’t seem useful if I can overcome the point made in the second bullet above (generating the sequence word-by-word without fixing sequence length apriori)