I stand forcibly corrected about posting above that you can't measure evolution directly. In addition to the other's comments, here's a Scientific American article that busts that notion to bits:

Actually evolution has been observed in our lifetime. An earthworm has been discovered on an arsenic dump site. That has 12 different DNA markers. Enough to classify it as different species.

This is just an amalgamation of the usual theist gambits. Among them, conflation of the two nearly opposite meanings of faith, namely, religious faith (affording belief to the unsubstantiatable) and colloquial faith (trust in the substantiatable based on evidence and experience).

Brains are real things that physically exist and the evidence that the professor has a brain is that he is walking and talking. Any idiot knows this, and that if it were legal and moral, one could open the professor's skull and see / touch his brain to their heart's content. Even the Bible says that "no man has seen god" and so that is an entirely different situation.

The story, overall, is just a standard-issue theist fantasy trope about the arrogant atheist undone by the humble servant of god. Ironically, atheists aren't especially arrogant and theists aren't especially humble, but that doesn't stop believers from mentally masturbating over stories like this.

These type of stories tend to all end with the non-believer feeling intimidated by the lack of logic in their argument. They also tend to be disrespectful toward non-believers, such as by intimating that the professor has no brain. They get passed around triumphantly as proof of the superior understanding of those who believe in God. I think the fact that people have to rely on well worn antidotes to boost their confidence says something about how logical their belief systems really are.

Before I ever started to argue my way into heaven I would first have to have proof that there was a heaven.

Why are you posting this moronic christian shit that they think is gotcha here?

What is meant by 'can't be "measured" directly?'

Maybe that's the allure of religion. You only ever have to learn one set of details and never have to absorb new information? I have so many relatives that haven't learned a thing since they were in high school (no college). But learning and education is a lifelong pursuit.