speak, memory, speak

I don't know how authors churn out books in months, some of them even faster than that. One of my mentors, Johnie Scott -- a professor in the Pan African Studies Department at California State University, Northridge, where I studied twenty years ago, whose amazing class I took back then and still remember as the best class I ever took, told me that as a writer, I should write 1500 words per day. Does this count toward my 1500 words, Professor Scott?