Infinite regression is less opposed to reason than the existence of an all-knowing, all-wise, all-powerful, all-benevolent, all-present deity, because infinite regression is just one phenomenon (regression) extended infinitely into the past.

The deity, on the other hand, has many infinite attributes, not just one - and infinite regression in the form of eternal existence in the past is one of them.

Furthermore, infinite regression, if true, does not conflict in any way with what we see around us every day of our lives.

Zoroastrians believe in two gods - one good, one evil - who are constantly at war in the world. That at least is more consistent with everyday experience.

It is very difficult to believe that the sort of unitary deity described above could approve of things like Ebola, rabies, and the Japanese earthquake-tsunami, none of which can logically be chalked up to the human misuse of free will.

Unless, of course, Original Sin is invoked to explain and justify them. But the only evidence of Original Sin is the assertion of it in the bible.