My motivation is specifically interactive storytelling. You look back on not only the foundations of my career and the things I've done since computers have existed, and you compare that to things I was doing just before computers were existed, they were very similar in the sense that, you know, I've been a big creator of physical artificial realities to explore: I've made haunted houses and big themed interactive parties in a physical sense that are the physical analog of the virtual worlds that I create. I was a big paper gamer with games like "Dungeons and Dragons" but in its earliest incarnation when it was much less about rules and was almost purely, literally, an interactive story...told through a shared experience of people sitting around a dining room table. And then computers became the rock upon which the future expansion got built, but my motivation was always the same, even before computers existed, which was to find a way to relate a story directly to another person to observe and watch their reaction to the story as it was taking place, and respond accordingly- find a way to optimize or challenge or change the reality as they were experiencing it in response to their reaction. And that's what I found compelling from the very beginning of what I've called "trials" that began before the computer really became popular.