In a world where gravity is selective and only affects certain colors, Chidubem has a blue ball that gravity affects, and Rhian has a red hat that gravity does not affect. If Chidubem stands on a hill and rolls the blue ball toward Rhian, who is standing at the bottom of the hill, and at the same moment, a gust of wind blows Rhian's red hat upwards, what will Rhian see when she looks towards Chidubem? Respond very briefly.
Rhian will see the blue ball rolling down the hill towards her because the ball is blue, a color which gravity affects. As for her red hat, since red is not affected by gravity in this world, she will see the hat rising or floating away from her, driven upward by the gust of wind. She observes these two events simultaneously: the ball descending the hill due to gravity and her hat ascending into the air, unaffected by gravity.