We have already covered the population, flood vs Non flood.
Here is how it breaks down:
What growth rate is needed to get six billion people since the Flood?
It is relatively easy to calculate the growth rate needed to get today’s population from Noah’s three sons and their wives, after the Flood. With the Flood at about 4,500 years ago, it needs less than 0.5% per year growth.
6 That’s not very much.
Of course, population growth has not been constant. There is reasonably good evidence that growth has been slow at times—such as in the Middle Ages in Europe. However, data from the Bible shows that the population grew quite quickly in the years immediately after the Flood. Shem had five sons, Ham had four, and Japheth had seven. If we assume that they had the same number of daughters, then they averaged 10.7 children per couple. In the next generation, Shem had 14 grandsons, Ham, 28 and Japheth, 23, or 130 children in total. That is an average of 8.1 per couple. These figures are consisent with God’s command to ‘be fruitful and multiply and fill the earth’
Let us take the average of all births in the first two post-Flood generations as 8.53 children per couple. The average age at which the first son was born in the seven post-Flood generations in Shem’s line ranged from 35 to 29 years, with an average of 31 years, so a generation time of 40 years is reasonable. Hence, just four generations after the Flood would see a total population of over 3,000 people (remembering that the longevity of people was such that Noah, Shem, Ham, Japheth, etc., were still alive at that time). This represents a population growth rate of 3.7% per year, or a doubling time of about 19 years.
If there were 300 million people in the world at the time of Christ’s Resurrection, this requires a population growth rate of only 0.75% since the Flood, or a doubling time of 92 years—much less than the documented population growth rate in the years following the Flood.
Australian Aborigines—cultural traditions connect to Noah
In addition to population figures, there is much other evidence against the supposed long ages of Aboriginal occupation of Australia—the observed rapid deterioration of supposedly ancient paintings, for example.
Furthermore, many Aboriginal tribes have stories, long predating their contact with Christian missionaries, of a global Flood, sometimes with startling similarities to the Bible’s account, but with sufficient differences to show that they were not recently incorporated into their folklore following contacts with missionaries. It is stretching credulity to suggest that these stories have been maintained by word-of-mouth for 40 to 60 thousand years, or that they were invented and just by chance have these incredible similarities to the Bible account.
The Aboriginal population and their stories are much more in line with their having been a nomadic/‘gypsy’ people who found themselves in Australia relatively recently—certainly after the biblical Flood.
A remarkable coincidence?
The Jews are descendants of Jacob (also called Israel). The number of Jews in the world in 1930, before the Nazi Holocaust, was estimated at 18 million. This represents a doubling in population, on average, every 156 years, or 0.44% growth per year since Jacob. Since the Flood, the world population has doubled every 155 years, or grown at an average of 0.45% per year. There is agreement between the growth rates for the two populations. Is this just a lucky coincidence?
Hardly. The figures agree because the real history of the world is recorded in the Bible
What if people had been around for one million years?
Evolutionists claim that mankind evolved from apes about a million years ago. If the population had grown at just 0.01% per year since then (doubling only every 7,000 years), there could be 1043 people today—that’s a number with 43 zeros after it. This number is so big that not even the Texans have a word for it! To try to put this number of people in context, say each individual is given ‘standing room only’ of about one square metre per person. However, the land surface area of the whole Earth is ‘only’ 1.5 x 1014 square metres. If every one of those square metres were made into a world just like this one, all these worlds put together would still ‘only’ have a surface area able to fit 1028 people in this way. This is only a tiny fraction of 1043 (1029 is 10 times as much as 1028, 1030 is 100 times, and so on). Those who adhere to the evolutionary story argue that disease, famine and war kept the numbers almost constant for most of this period, which means that mankind was on the brink of extinction for most of this supposed history.