How does Stable Diffusion work?
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Stable Diffusion is a numerical method used to solve partial differential equations (PDEs) in which diffusion is the dominant physical process. It is a variant of the explicit finite-difference method that is designed to be more stable and accurate for PDEs that have large diffusion coefficients or steep gradients.

The basic idea behind Stable Diffusion is to modify the standard finite-difference stencil used in explicit methods to reduce the truncation error and improve stability. In particular, Stable Diffusion uses a modified stencil that includes a weighted average of the values at neighboring grid points, instead of just the values at the grid points themselves.

The weights in the modified stencil are chosen to minimize the error in the approximation of the second derivative, which is the dominant term in the diffusion equation. The resulting method is more accurate and stable than standard explicit methods, especially for problems with large diffusion coefficients or strong gradients.

Stable Diffusion is a popular method for solving diffusion-dominated problems in a variety of fields, including fluid dynamics, heat transfer, and chemical engineering. It has been shown to be effective for problems with complex geometries and boundary conditions, and is widely used in numerical simulations and modeling applications. However, like all numerical methods, its accuracy and stability depend on the specific problem being solved and the choice of parameters and discretization scheme.
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Sorry, that wasn't helpful. Probably you don't know about Stable Diffusion - GAN, which produces very nice pictures based on text prompts.
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