In quantum mechanics, a single particle is also a wave and vice versa. Light is in fact the thing where this observation was first discovered - it had been proven to be a wave for at least a few decades when Einstein discovered the quantum nature of the photovoltaic effect, proving it is also a particle. This discovery was the very start of quantum mechanics, in fact.
"in fact", that was not the very start of quantum mechanics. Einstein's work was preceded by 5-10 years by investigation into the cause of quantized black body radiation. that's why we have Planck's constant and the notion of quantized oscillators. why are you going around talking with such authority? QM and nature is more amazing than you realize. particles are not waves "and vice versa". particles don't exist nor do any classical waves of energy in the way you keep saying as if they're facts. only the wavefunction travels. please be more careful about posting so authoritatively. comments such as yours are why it takes people so long to stumble onto the reality of nature, if they ever are so lucky.
