Does the beach ball represent the Earth with its curved surface and the line between the two dots represent the light from one point to another? Does this mean that as for us observers in the plane, light appears to travel in a straight line but if we look at it from the perspective of the...
You could shine your flashlight into a wall and see that the light still hits the wall without bending significantly towards the ground unlike when you throw a ball to the same wall and see it hit the wall (given you apply enough force) and fall back to the ground.