"Experiments conducted by Smit suggest the fast-growing mold would diffuse footprints quickly, so he believes these were fresh prints."<BR>..................................................................................................<BR>And just who was the mold expert or experts that Smit consulted to determine the "mold"'s growth rate? It sounds rather like he was making an assumption that it "grew" fast, because it served his theory to believe that. That is not following the evidence. If this was truly "mold," what genus was it? You have, yourself, said you walked on it and it crackled, as if you were walking on soap bubbles. This would be a characteristic of concrete dust, which does form a soap-like substance, but would not be a characteristic of an organic mold, which would be slimy and cause the windowless room to have a stench from the continuously-dying portions of any real "mold."<P>