If so, there is no need to invoke design, although design cannot be ruled out, because it can mimic chance. If chance is implausible, the remaining explanation is design. While it may not be possible to mathematically prove design, yet one can reasonably invoke design as the best inference to the evidence. The explanatory filter provides an objective method to examine the problem of identifying design. The sticky point, however, is the plausibility criterion.
People differ in their judgment of what is plausible.
Furthermore, philosophical preferences may strongly disincline one to accept an interpretation at variance with one's chosen paradigm. Nevertheless, I found the explanatory filter to be a useful tool to identify the degree of improbability one must accept in order to avoid the conclusion of design. Scherer identifies several unanswered questions in hominoid evolution, and proposes that hominoids occur in a series of separate types. These include the cercopithecine monkeys, with differences among the genera possibly due to minor genetic modifications of developmental growth parameters. A second type is the gibbon apes, and orangs make a third type.