Its worth emphasising that entanglement is not a two-party / duality specific thing. You can entangle 2 particles, you can entangle 3 particles, you can entang

Its worth emphasising that entanglement is not a two-party / duality specific thing. You can entangle 2 particles, you can entangle 3 particles, you can entangle n particles (although actually doing so becomes a quite hard engineering problem as n grows), you can even entangle different properties of the same particle with each other so the spin and position of an electron can become entangled. Human brains love dual/pairwise properties for some reason, but they don't seem to actually come up in physics very often.