A creative artist is faced with limitations. I can easily imagine how artists in all fields are affected by limitations, but it is as a composer and jazz musician that I really know about it: there's a budget that determines how many instruments are in the ensemble, the musicians you are working with are skilled in particular ways only, the instruments you are writing for have their own peculiarities such as the ranges that they sound the best in, and so on. But what is especially interesting to me are self-imposed constraints. It's like you're inventing a game with your own rules that you can choose to ignore. It's fun!