Comment on Two Sides Of The Exact Same Problem by paradigm-shifting

If humans view the world as they are and not as it is, then what is the measure by which to discern the difference between opinion and truth. When doctors don't agree on medicine, scientists don't agree on science, philosophers don't agree on philosophy and no one ever agrees on everything: what then is opinion, what then is truth, and how is it measured?

For every human who says "this is the truth!" another will absolutely come along and say "no, thats your opinion!" and the endless battle begins.

So if everyone views their opinions as truth, how do we truly know for sure?