[binary132]

So the hypothesis here is that they hung a dead guy in front of a dark cloth for a few months, and also made sure that the details of his face somehow made it onto the cloth even though the light was silhouetting him? Or am I missing something here?

[CamperBob2]

If it's a forgery, it could have been done simply by using whatever sculpted or hand-formed objects were needed to create the negative image. Basically a stencil.

Point being, people are way too eager to assume supernatural causes.