> Say you have a photon in a superposition of state A and state B - think position. Why are you assuming the particle has got to have a "position"? The fact t

> Say you have a photon in a superposition of state A and state B - think position. Why are you assuming the particle has got to have a "position"? The fact that a quantum particle can interfere with itself would be experimental evidence that it doesn't in fact have a definite position.