"But I did learn that there are two sciences: one of observation and the other of history. You can't know history because you weren't there. "

That was Ham's contention

"Dare I ask - if no original texts of Genesis exist today and what we have has been repeatedly re-interpreted by the scribes who copied them (no one was in the Garden of Eden to write a history, I believe) then historical science doesn't exist."

Nye addressed that point when he compared it to a game of telephone.

I think the most telling point was after Nye had gone into me detail that the ice core in Antarctica had 680,000 layers representing at least that many thaws and freezes (Summers and winters.), that Ham ignored that at the time but later said "there was a lot of snow that year." As if that explained the 680,000 layers.

Ham did nothing other than try to sew doubt. His theory is not viable because it is nothing but a bait and switch to his version of Jesus. One clever thing he did do was incorporate many of the criticisms of what he does into his criticisms of Nye.