I'm really sorry, I know I've been banging this drum for far too long, but, I've been noodling around a bit and I think I may have a really clear way of explaining myself. When talking about
@Maxperson's driving, he said this:
Which, to me, perfectly encapsulates the point I've been making.
@Maxperson may very well be a fantastic driver. But, he's only a fantastic driver in Southern California. He admits that he doesn't deal with ice or snow. He drives in Southern California, a pothole is a mythical beast he's never seen. He has never really seen any inclement weather - it rains like what, twice a year in Southern California. (that's meant as a joke btw) He has never driven in an ice storm. Or a monsoon. Or serious fog. He's always driving on very well maintained, paved roads in virtually always perfect weather.
Pick him up and plonk him down in northern Michigan in February and he's got a problem. Because he has no experience with this kind of driving. Which means that he cannot actually drive outside of the southern part of his state for several months of the year. Driving to Nevada for Christmas is difficult because you get snow and ice in the mountains at that time, which he doesn't drive in.
So,
@Maxperson is a fantastic driver so long as he stays (ahem) in his lane. Stays in his comfort zone. Driving a car he is very familiar with in conditions that he is very familiar with that are very rarely more challenging than a light rain. I mean, as a perfect example, I ask my Japanese students, and I live in the south of Japan where it never snow, how to open a car if the locks are frozen. They'd never even heard of locks freezing, let alone know what to do. Two centimeters of snow and they close the highways. :wow:
The same goes for a single system DM. They might be great so long as they stay in their comfort zone. They've done really well within this specific kind of game and kind of campaign. But, because they have no experience outside of that comfort zone, they would start to struggle. They don't have the experience or tools because they've always stayed in their comfort zone.
This is why I argue that single system DM's aren't very good DM's. It's too self limiting to stay with one single system and never get outside of that comfort zone. You get better at something by challenging yourself. By constantly trying new and different things. It's easy to be a good at something when you never step outside of that comfort zone. If you want to be great at something, you have to challenge yourself. Constantly try to learn new things.
That's how you get better.