'' God is a human invention,'' and similar statements, are totally worthless coming from anybody who has not given at least some cursory study time to the subject.
Its similar to dismissing a political party without thoroughly examining its policies, that is, driven by laziness and smugness.
Credit where its due, some learned and dogged atheists post on here, and sadly, atheists from the other end of the spectrum are also well represented.
Brilliant scientists have narrowed down the possible scenarios of the infant universe to just possibly three, but can not escape the problem of, ''nothingness,'' always needing that first miraculous push from, ''something,'' unless of course you agree with the concept of abandoning the laws of cause and effect and attribute this to quantum field theory.
Even then, the argument is only dealing with the, ''how,'' and not the, ''why,'' which is something I imagine would be of great importance to those who study, ''reason.''