The fallacious move from different perspectives to relativism about truth

This is a short lecture video about a common argument that one often hears for the claim the truth of some claims are relative. The argument stems from the fact that different people have different perspectives and that those different perspectives are, in some sense, equal. All that is true, but it does not show the matters about which people have different perspectives are not factual matters regarding which some beliefs are simply truth and others simply false.