Particle and waves were just two seemingly incompatible models the modern natural philosophers used. In post-modern (quantum) physics and the discovery/concept

Particle and waves were just two seemingly incompatible models the modern natural philosophers used. In post-modern (quantum) physics and the discovery/conception of photons by Einstein, they have been brought together as the same concept (and more generally for non-light by de Broglie as quantons). A wavepacket is probably a good way to think of single quantons : https://upload.wikimedia.org/wikipedia/commons/9/92/Wavelet.gif https://upload.wikimedia.org/wikipedia/commons/9/92/Wavelet.... N.B.: In sufficiently weird and/or high energy situations, photons can also interact with one another ! : https://www.quora.com/Do-photons-interact-with-other-photons?share=1 https://www.quora.com/Do-photons-interact-with-other-photons... https://en.wikipedia.org/wiki/Two-photon_physics https://en.wikipedia.org/wiki/Two-photon_physics