Beretta writes:
Well compared to the time that unicellular forms apparently hung around unchanged -very explosive -work it out compared to how many unique and complex forms there are, it was a fraction of the time one would expect for such diversity by mutation and selection.
That's a bit of a misrepresentation. Unicellular forms did not hang around for billions of years unchanged. They diversified into thousands of unique life forms. One should not overlook the variety among unicellular forms. They are as diverse, if not more diverse than complex life forms.