"There are writers who do start doing the same thing again and again and almost inevitably fall into self-parody"

This quote by Tobias Wolff is a warning to authors to avoid ending up being too comfortable with their composing design and to avoid repeating the same concepts and strategies. He is recommending that if an author does not challenge themselves and continues to write in the very same design, they will eventually become a parody of themselves. This is because the very same ideas and methods will end up being too familiar and the writing will become predictable and stale. Wolff is motivating writers to press themselves and to check out new ideas and techniques in order to keep their composing fresh and fascinating. He is likewise suggesting that authors ought to know the risks of ending up being too comfy with their writing and ought to aim to keep their composing distinct and engaging.