This exaltation of reason as the exclusive and supreme criterion of what is real and knowable includes the philosophical belief referred to as phenomenalism. This philosophy holds that anything beyond what is apparent to the senses is irrational, does not exist, or cannot be known because only through the senses is real or rational knowledge attainable. It is this controlling obsession with rationality which leads atheists to erroneously identify reality exclusively with what is rational. In other words, how they live as members of human society contradicts what they espouse philosophically. The equating reality exclusively with rationality becomes the fundamental flaw of atheism because reality is not excusively rational.
Irrationality is an inextricable part.
In all of life and in the entire physical universe, reality is composed of both rational and irrational elements which are inseparably and hopelessly combined. I came to see that part of a true understanding of existence included an understanding of this incontrovertible phenomenon. We can equate design or the interrelation of everything in the universe as the rational component of existence. This is the supreme realm of the sciences. Scientific knowledge thrives exclusively on an ongoing discovery and study of designs and relations which can be found in things that exist or occur in the universe and which make sense to our reason.