T.C. Locke
I'm not a professional writer so take anything I say with a load of salt, but I'd say the ability to create, without needing anyone or anything else, a world in which you can play.
More Answered Questions
About Goodreads Q&A
Ask and answer questions about books!
You can pose questions to the Goodreads community with Reader Q&A, or ask your favorite author a question with Ask the Author.
See Featured Authors Answering Questions
Learn more