Characterizing one who can "Go With The Flow", or become so absorbed in and focused on an activity that one feels control over a situation or task, that one experiences a reduction in self-consciousness, and that one's sense of time is distorted to allow them to remain uninterrupted for long durations. Similar to "Productive", but highlights a continuous stream of accomplishment instead of potentially disjointed efficiency with a given time frame. Also known as "Getting Into The Groove", or "Hitting One's Stride". Related to Mihály Csíkszentmihályi's concept of flow, as defined in his book, "Finding Flow: The Psychology of Engagement With Everyday Life" ISBN 0-465-02411-4
"I was so flowductive last night. I sat down to start my paper, and next thing I know, I stood up 8 hours later with 15 pages written."