 A further criticism by Stenger is that considerations according to which the conditions in our universe are fine-tuned for life routinely fail to consider the consequences of varying more than one parameter at a time. In response to this criticism, Barnes (2012: sect. 4.2) gives an overview of various studies such as Barr and Khan 2007 and Tegmark et al. 2006 that explore the complete parameter space of (segments of) the Standard Model and arrives at the conclusion that the life-permitting range in multidimensional parameter space is likely very small.