The problem with this poster is that it is a contrived idealized scenario. We rarely encounter such ideal scenarios in the real world. Imagine instead that the first individual is just barely taller than the second. There are still only three boxes. Someone isn’t going to be able to see. In the real world this is what happens and equity still doesn’t mean equality of outcome and it never will. The real world isn’t an imagined poster created to illustrate the definitions of two words. Don’t confuse a poster with reality.