Water has been obviously wet for as long as there’s been water. The theory of quantized light has only existed since 1900. The idea of using light quanta to pow

Water has been obviously wet for as long as there’s been water. The theory of quantized light has only existed since 1900. The idea of using light quanta to power logic gates is a very modern innovation, in a very modern field called quantum computing, which is what the article being discussed is about. There’s no such thing as dry water, but there’s a very clear distinction between a technology that processes individual photons and one that just uses light. Perhaps ‘quantum light’ is a bit contrived, but the ‘quantum-ness’ of the light is the novel aspect of both the technology and the underlying physics.