A hollow metallic ball would struggle to withstand the intense heat from the sun due to its high thermal conductivity. To prevent overheating, shading or increasing the shininess of the ball can help, as a shiny surface reflects sunlight rather than absorbing it. The discussion highlights that a shiny exterior can significantly reduce temperature by reflecting solar rays. There is debate over whether the ball is hollow or solid, with opinions suggesting that a hollow structure would be less prone to heating. Overall, the effectiveness of temperature management relies on the ball's reflective properties and structure.