The marvel of an infinite, universal God is that each of us has an individual relationship with this God. Whether there are eight or eight billion of us is of no concern to the Infinite. This is a concept resisted by those who deny an Intelligence beyond themselves. Considering that this resistance has persisted since Adam!, it is nothing new. But it is important to recognize its workings so that we can avoid them in ourselves.
The moment I embrace an "undeniable truth" based upon empirical evidence, I am ignoring God, and will be heading down a broad road. I may even find myself aligning with like-minded folk and dismissing those who do not buy in to the "undeniable truth" as deplorable specimens of the human race! This is a state of collectivism, and is Godless, for the infinite, universal God does not deal with groups, only with the individual. "The intercommunication is always from God to His idea, man." (S&H) Throughout the Bible, it is recorded that God spoke to the individual, not to the group.
The way to avoid the "undeniable truth" scenario is to remember that no matter how much we know, there is far, far more that we do not know. Empirical evidence is, at best, a snapshot of a shadow of an instance of the infinite. This is why we are utterly dependent upon that All-knowing Intelligence, as Jesus showed us: "Of mine own self, I can do nothing. The Father that dwelleth in me, He doeth the works."