Jorge Louis Borge said writing fiction is an unnatural act. That was informative for me. In rural isolation I increasingly immerse myself in thoughts of a story and awaken with a thought at 2 am or whenever to write another page or two.
When summer writing I am pressured by the need to finish a draft before the temperature drops to near freezing and below.
They are philosophical science fiction works so insights into physics concepts appear as they will. With luck I might get ten pages in a day varied with three or four. Editing of a first draft need wait until May when the weather warms the Earth, or never.