People Make Games traveled to Michigan to meet Jerry Gretzinger, an 84-year-old man, who's spent most of his life working away on a single, giant map to an imaginary world.
www.youtube.com/watch?v=Is8N...
it's basically the number one rule to any medium ; you can't just tunnel-vision and pigeon hold yourself into a corner. that niche may feel comfortable but it's stifling and prevents you from seeing "the bigger picture" in any sort of artistic/cultural context