# The problem is not copying every molecule; it is identifying the causally relevant functions by Randal A. Koene > "The problem is not copying every molecule; it is identifying the causally relevant functions." > **— Randal A. Koene**, *Whole-brain emulation discussions, wording candidate* Verification Status: Unverified — exact wording/source has not yet been independently confirmed against a primary source; source clue: Whole-brain emulation discussions, wording candidate.