Stump the Christian?

[Ravenshire]

Bloody hell, you are pretty clueless. 

Scientists are one of the most humble groups there are. If you ever attended a science conference, you would constantly hear the scientists using language like the following, "I am sure there are people in the audience that know more about subject X than me, so please jump  in with corrections as needed", or, "it seems that our studies and evidence pointing to X being tentatively correct, but please, run your own studies and prove us wrong", or "based on our previous evidence, we thought X was correct, but further studies by [list of scientists] have proved us wrong".

There is never any claims of absolute certainty. All conclusions in science are considered tentative and provisional, and will be modified or dropped if new evidence is found.

Where is the faith? 

I'm pretty sure it's the laymen he's claiming are "placing faith" in science. Funny that the worst insult a theist can come up with is to be exactly like him.