rightup [WHOLE] >< leftdown [PART]
Each boy is 1/2 as high as the next larger boy. The sequence of heights forms a geometric progression; there are infinitely many boys in the picture, but if they stood on each others heads, the tower would not be infinitely high, even though there are infinitely many boys, the tower would only be twice as high as the first boy.
[text from the exhibition ‘Mathematica’, by Charles and Ray Eames, 1961]
[reinterpretation of collage by Charles and Ray Eames, for the exhibition ‘Mathematica’, 1961]