Photo Post: Perturbation
If finding an exact solution is not possible, perturbation theory provides a framework to build upon a known solution for a simpler problem. The resulting perturbation series can then be utilized to approximate the solution to the original, more complex, problem. If a simple picture does not work, perturbing it might result in the emergence of previously non-existent forms that produce structure. Thus, the more complex procedure while taking the photo can result in pictures of greater simplicity.