Academic writing you have to get right. Fiction you have to get plausible. And there's a world of difference. In a way, if someone says this didn't feel exactly right, I don't care. But that is not okay to do in academia - it's not about feeling. You want to establish a pretty solid case. So did this allow me to express things differently? Absolutely. Another thing I've been thinking about as an academic: our writing style is expository, and in fiction, withholding information matters quite a bit. Withholding things in academia - there's no place for that!