Another support to the influences on culture to determine truth

I believe there are universal truths in the world.  In fact it seems rather silly to think that someone could hold that there are no universal truths, but some modernists misunderstand post-moderns.

However, the scope of what is universal truth seems to becoming narrower and narrower.  Take a look at this 3 minute video on the placebo effect which I think makes the point rather well.