There is one question wound care specialists typically do not ask. If Winter and Hinman proved the use of cling film speeds up wound healing by 40%, why are there hardly any studies repeating the phenomenon in a clinical setting and do meta-analyses invariably deliver hardly any or no effect. It seems to me the gap between Winter (animal research, evidence level C), Hinman (evidence level B) +40% and meta-analyses (evidence level A1) +/- 0% requires an explanation. To me it is a logical question for a logical problem: the gap is too large, we cannot find 40% and 0% outcome at the same time. So who sheds some light on the logic behind the phenomenon?