Light exhibits wave-particle duality, meaning it displays both wave-like and particle-like properties depending on the context. This duality is widely accepted in physics, as it helps explain various phenomena, including behaviors observed in experiments like Young's double slit. The discussion highlights that all particles, not just light, possess wave-like characteristics, challenging traditional views of particles as discrete entities. Ultimately, the nature of light and particles remains uncertain, suggesting they may not fit neatly into either category. Understanding this duality is crucial for grasping the complexities of quantum mechanics.