Perhaps Steve, If you had noted the punctuation and read the whole sentence you might have some small clue about the thought communicated therein.
The word "while" joins two phrases into a compound sentence.
But Wackers, 'tis not I who needs to check the grammar books. What the word "while" joins in your puzzling sentence are not two "phrases" at all. Not only that, there's more than a hint of the non sequitur about the thing as well. And I certainly did note the punctuation: it's awful. Here it is again, presented purely for the sake of amusement. You'd surely give any proof-reader a headache, old bean. Go to the back of the class. Smackie botty!
He argues that carbon dating is not sufficient to prove a 14 billion year old universe while strongly implying that he is aware that it disproves a 6,000 year old "creation."