Grahal: G(1) This is the first member of Graham's sequence, and it's already way bigger than we can imagine. It's not 0, 1, or 3; it is already the gigantic 3^^^^3. With four up-arrows, the numbers get a LOT crazier: 3^^^^3 = 3^^^3^^^3 = 3^^^Tritri = 3^^3^^...^^3^^3 with Tritri 3's Now THIS is a number that leaves tritri in the dust. It might be easiest to visualize with stages: Stage 1 = 3 Stage 2 = 3^3^3 = 7,625,597,484,987 Stage 3 = 3^3^...^3^3 with Stage 2 3's = Tritri Stage 4 = 3^3^...^3^3 with Stage 3 3's Grahal is Stage Stage 3 = Stage Tritri This is almost impossible to even understand!! But, as you will later learn, G(2) is a number that leaves everything far, far behind it.