TRUTH… and ditto for facts.
“The truth, whatever it may be, is the same in England, France, and Germany, in Russia and in Austria. It will not adapt itself to national needs: it is in its essence, neutral. It stands outside the clash of passions and hatreds, revealing, to those who seek it, the tragic irony of strife with its attendant world of illusions.”
PS: anyone who believes that reality is fluid: prove it. Identify with No-Gravity and jump off the roof.