The truth?

I am currently looking over my wife's shoulder as she peruses documentaries to view.  One has jumped out as ironic, it's called "The Truth about Food."  Upon reading this title, the first thing that came to mind was, yeah, for right now.  In fifty years, "the truth" will most likely look completely different.  Not that this is a bad thing.  It could be bad, it's could be good, is really hard to say.  The simple fact is, we actually know very little, and it is sheer arrogance to claim "truth".
The only place that truth can unresolvedly be claimed is the Church.  God has come in the flesh and is currently leading His church through the Holy Spirit leading the church. 
I really wish any ideas and theories would be posted as "maybe", instead of truth.  I think a little humility might be a good idea.