# The key uncertainty is what level of detail is needed by Anders Sandberg > "The key uncertainty is what level of detail is needed." > **— Anders Sandberg**, *Whole Brain Emulation: A Roadmap (2008), wording candidate* Verification Status: Unverified — exact wording/source has not yet been independently confirmed against a primary source; source clue: Whole Brain Emulation: A Roadmap (2008), wording candidate.