Video about the universe

In this video we saw, a guy tries to refute all of the arguments that we know believe are true about the universe, using specific things.

At the beginning I just thought that this guy was on crack, but then... what if we are all wrong, just like the people who didn't want to believe in Copernicus' system? And what if this guy were right and we just didn't want to believe him because we had been taught something else?
Its like its all happening all over again.
How do we know we are right?

I mean, I have never seen any videos or pictures of the Earth moving.

I dont have a theory to negate his, just like the people in the medieval times with Copernicus.

Now days, we don't question these things. We just learn them in our sixth grade science class and absorb them.
Its like if we take a leap of faith.