As time progresses, the various scientific fields converge. Findings in geology, biology, paleontology, oceanography, etc come together to create a more accurate view of the world. We see them supporting each others' conclusions. Like putting together a puzzle, or coloring in different parts of the same picture. This confirms their pictures of reality are leading them to the same truth.
In contrast, as time progresses, religions diverge. They become more numerous, their conclusions differ ever more, and even exclude each other. Looking at Christianity alone, how many versions of the "one eternal truth" have been created in this century alone? How varied are they from 1500 A.D.? From 33 A.D.? The number of answers show this "shot in the dark" method of determining the truth is fatally flawed. It leads humanity further from truth and into the realm of useless and unsatisfying (although comforting) speculation.