I don't think Stoppardian has a precise definition.

You always end up with too much, so it's good to be part of the conversation about not just what you can omit, but how you are going to do the grammar of the omission, how you make things continue to work when there's something missing. It's your last chance to rewrite.

Once rehearsals are done the writer really doesn't have a function on the set. If the script is stabilized, then the writer becomes a celebrity tourist visiting the set, trying not to get in the way. It's very good for the ego, to go visit a film set if you are the writer, because they give you a special chair, and tell you where you can sit to watch the monitor. They make you feel special, but at the same time, they make it perfectly plain that you are irrelevant!

Hotel rooms inhabit a separate moral universe.

If enough things that are untrue are said about you, no one will know what really is true.

...Everything has to be taken on trust; truth is only that what is taken to be true. It's the currency if living. There may be nothing behind it, but it doesn't make any difference so long as it is honoured. One acts on assumptions. What do you assume?

I would join Sisyphus in Hades and gladly push my boulder up the slope if only, each time it rolled back down, I were given a line of Aeschylus.