"The problem is not staying on for 16 or 17 years -- I mean, theoretically anybody could do that. But the thing that made X-Men unique in its day was that the first iteration of the series that Stan and Jack created in 1962 had run its course. It wasn't a success. So when Dave Cockrum and Len Wein worked together to build the new X-Men, we were essentially starting with a clean slate. Aside from Charles Xavier being the mentor and Scott Summers showing up to run the shop, everything was brand new. And the way the industry is structured now, the way that Marvel or DC or Image are structured now, that's unlikely to happen again. You don't have that mainstream series that you can recreate in public before everyone's eyes and come up with something completely new and different. So I don't think that opportunity will come again. I just happened to have the ridiculous good fortune of being in the precisely great place at the precisely great time, and I got to run with it."