I WONDER - Why Do Table Tennis Rackets Have Two Different Coloured Sides?

The video tutorial explains the choices of rubber types for the red and black sides of a table tennis racket, highlighting their roles in attacking and defending. Players can inspect each other's rackets before a game to understand the rubber used, which affects the speed and spin of the ball. The video also outlines the rules for winning a table tennis game, where a player must reach 11 points first.

What new insight or understanding did you gain from this video?