I didn't agree, so I asked the illustrious Marks for a calculation or other rationale supporting this claim.
After three months, no reply. So I asked again.
After six months, no reply. So I asked again.
After one year, no reply. So I asked again.
After two years, no reply. So I asked again.
After three years, no reply. So I asked again.
After four years, no reply. So I asked again.
Now it's been five years. I asked again. Still no reply.
This is typical behavior for advocates of intelligent design. They do not feel any scholarly obligation to produce evidence for their claims. That's one way you know that intelligent design is pseudoscience.
I wish some brave Baylor student would have the courage to ask Marks in one of his classes for why he refuses to answer.