" Seto Kaiba [to Ishizu]: How do I know you didn't just make this slab a few days ago?! There's no proof it's 3,000 years old! Even carbon dating doesn't work perfectly on rocks! "

― Kazuki Takahashi , Yu-Gi-Oh! (3-in-1 Edition), Vol. 6: Includes Vols. 16, 17 18