A TAUTOLOGICAL STATEMENT IS A STATEMENT THAT IS TRUE BY DEFINITION.
FOR EXAMPLE,
A FACT MUST BE EMPIRICALLY DEMONSTRABLE AND OR LOGICALLY-NECESSARY.
EMPIRICAL DEMONSTRATION REQUIRES PHYSICAL SENSORS ATTACHED TO A HUMAN BRAIN.
LOGICAL-NECESSITY IS DETERMINED BY CAREFUL RATIONAL ANALYSIS OF AN IDEA'S COHERENCE.
RATIONAL ANALYSIS REQUIRES A HUMAN BRAIN.
THEREFORE, IT FOLLOWS, BY DEFINITION, THAT A FACT REQUIRES A HUMAN BRAIN.
THERE IS NO WAY TO MAKE A FACTUAL STATEMENT WITHOUT A HUMAN BRAIN.
THERE IS NO WAY TO VERIFY A FACTUAL STATEMENT WITHOUT A HUMAN BRAIN.