[In a thread labeled "What you need to know about creation"]
1. Population statistics—If man appeared over one million years ago, the present world population would be thousands of times greater than it actually is. In fact, our entire galaxy could not provide the needed space for so many. The present world population is around 6 billion. Assuming the average life span to be 70 years and the average generation length to be 35 years, then starting with one family, the present world population would result in about 30 doublings. These doublings would carry us back in history from today to around 3500 B.C. This date is suggested by several creationist scientists to mark the time of the flood. Thus, the creation model dovetails beautifully with known world population statistics. But what of the evolutionary model? Dr. Henry Morris writes, “Now, if the first man appeared one million years ago, and these very conservative growth rates applied during that period, the world population would be at present 10 (27,000 zeros following) people. However, no more than 10 (with 100 zeros) people could be crammed into the known universe.”

(Scientific Creationism, Master Books, 1974, p. 154)