Well, I don't know anything about magic, except special effects I do for little videos here and there, nor do I know what magical thinking entails. [cause and effect while ignoring the middle maybe?] The repeatability of the scientific method does deserve our trust.* But "only'? There are other methods which also deserve our trust. Engineering for example. The engineering method is SIMILAR TO the scientific method but it includes a few more factors than Science does.* For example, heuristics are very important in Engineering. Did it work before? Yes. Do we know why? Do we have a theory? Sometimes not. Yet, it works. Heuristics are valid because of their repeatability but they're not part of the scientific method. They're a part of the engineering method.