Creationists like to admit that Micro-Evolution is real and deny that Macro-Evolution exists. They cite that we've never seen Speciation, we have no transitional fossils, and some will throw up a picture of crocodile crossed with a duck and look for that. If we never find that fossil they have won, at least in their minds. Without going into that, I want to take on the Bible and even Micro-Evolution. They set up the timeline with Genesis, and I'll be glad to play their game.
First off, the Tower of Babel was bothersome to God because it was set to reach the heavens. The reasoning God came up with is that the people were so smart working together because they spoke the same language. He didn't want man to reach the heavens so he scattered them about the earth and confused their languages (Genesis 11). Let's ignore that shortly thereafter God floods (Genesis 18) the earth killing those with different languages and move on to the continuation of the idea that the languages remained even though everyone was dead (Love Christian logic).
Let's take on the Tower of Babel. My background was as an Iron Worker, then as a Tower Crane operator. I'm currently likely the only guy in the nation licensed in two states as a tower crane inspector. I'm not an engineer, but I have a sound understanding of structures. The material available would have been stone. Let's suggest that Bronze was available, too soft. Copper, same result. The ductility of metals would not allow shear loaded shear connections to handle the loads. So Stone would be the material used. A period correct structure would be the The Great Puramid at Giza. At 455 feet, you have the tallest structure for centuries. Until the Bessemer Process in the late 1900's that developed low carbon steel, anything taller would have required a larger foot print at a 1:1 ratio. With the advent of steel (even in concrete structures for tensile strength) we have gotten to the Burj Dubai. at 2600 feet tall, do you suppose the Tower of Babel was taller than this? Have we made it to heaven? What floor do I get off on to see God?
You accept Micro-Evolution you say? So you don't mind that Chinese history shows gaps in the age of the Earth according to the Bible. The flood would have wiped them out? OK, moving on... we are talking about evolution having happened over a period of less than 6000 years developing Negroid, into Caucasoid (never mind Neanderthal) and Mongoloid. This is not speciation, this is only the "Micro-evolution". So the claim is that in 6000 years we have went from all being Black or Arabic to being white to deal with the lack of sun, stayed Arabic and Black, and changed to Mongoloid with coarse hair, thin eyelets and shovel incisors. Within the theory of Evolution, this change is too fast. If this were possible, then the argument against the Cambrian Explosion is debunked by their own evidence. By comparison, they would reject the example of Salamanders in California separated by 10 million years leading to speciation but over 6000 years they recognize the "micro-evolution".
The next time a creationist decides to discuss this, tell them that you'll give them the flood after the Tower of Bable and assume that there is a good explanation. Ask them if Micro-Evolution is true and the Cambrian Explosion destroys Marcto Evolution due to speed, how do they explain the differeneces in humand in 6000 years or less? I've heard the Canaanite explanation, now explain Asians and Whites.