Fascinating little piece. Truth is a fascinating concept, really. Truth is what people believe it to be. This is not to be confused with fact, which refers to the genuine sequence of events in any given situation. Take three witnesses to a crime, and all three can give close approximations of what really happened, or three totally different versions, because what we see and hear is subject to interpretation by our brains, which are quite fallible, and which tend to filter our realities through a screen of uncertain knowledge and sometimes traumatic past experiences.
The danger of truth is that fact can sometimes be lost. If someone we admire and trust says that real facts are 'fake news', then we come to believe an untruth as truth. Some people have no sense of fact, and will believe a ridiculous truth even in the light of cold, hard facts. Most humans do not know truth, because they will always believe what they want to believe. Other people can sense facts, and form their truths from them. But they will always be at war with people who think the truth is what they think is the truth.
So the quest for truth really is not worth the effort. What needs to be determined are facts, which no amount of misdirection, prevarication, or outright bullshit can ever obscure.
Good luck with that. Facts are like snowflakes on a too warm day. Just when you have them in sight, they're gone.