 Similarity-based supervenience is logically independent of indiscernibility-based supervenience: neither implies the other. Similarity-based supervenience fails to imply indiscernibility-based supervenience. It may be that there can be A-differences without B-differences, but that there cannot be large A-differences without large B-differences. And indiscernibility-based supervenience likewise fails to imply similarity-based supervenience. The reason is that there may be small B-differences that are critical points for big A-differences. When that happens, similarity-based supervenience will fail, even though indiscernibility-based supervenience may hold. For example, it might well be the case that small physical differences can be accompanied by large mental and moral differences. Similarly, a small physical difference like a misplaced brush stroke might have a large effect on the aesthetic value of a painting. Suffice it to note that it remains an open question whether there are any interesting philosophical uses of similarity-based supervenience.