Wow. Where to begin....... there are multiple things to address in this video clip but the root of it as I see it is Bill Maher's statement about Joseph Smith being a con-man because DNA testing proves that Native Americans are not descendants of Isreal. Bill Maher said, "Faith suspends critical thinking...if you can't prove it it's not true."
Let's see what Korihor said;
Alma 30:12-16 - 12 And this Anti-Christ, whose name was Korihor, (and the law could have no hold upon him) began to preach unto the people that there should be no Christ. And after this manner did he preach, saying:
13 O ye that are bound down under a foolish and a vain hope, why do ye yoke yourselves with such foolish things? Why do ye look for a Christ? For no man can know of anything which is to come.
14 Behold, these things which ye call prophecies, which ye say are handed down by holy prophets, behold, they are foolish traditions of your fathers.
15 How do ye know of their surety? Behold, ye cannot know of things which ye do not see; therefore ye cannot know that there shall be a Christ.
16 Ye look forward and say that ye see a remission of your sins. But behold, it is the effect of a frenzied mind; and this derangement of your minds comes because of the traditions of your fathers, which lead you away into a belief of things which are not so.
Sorry Bill, your trick is at least a couple of hundred years old. Satan seeks to appeal to the "carnal mind". Well, I like to think of myself as a critical thinker and I do not rule out those pieces of information that contradict my particular view. Case in point the brightest philosophical and scientific minds at one time thought the earth was flat. They also thought that the earth was the center of the galaxy rather than the sun. The understanding of man is limited and I do not need to see something with my eyes in order for my critical thinking to be considered fully satisfied. I try to give proper weight in the fufillment of my critical thinking to the promptings of the Holy Ghost. Through the Holy Ghost, a merciful Father in Heaven has communicated with me; one of His trillions of children, and communicated with my intelligence that the Book of Mormon is true among other truths. As I see it, I have "proven" a truth to my understanding as critically and as real as proving it through seeing, touching or any other of the physical senses. The gospel is true, God is real, and as far as man's understanding, it is limited. Particularly so for Bill Maher.