I understand that laser is based on the phenomenon of coherence. But I wonder how, say, two photons could be said to be located at the exact same spot when their locations could not be precisely defined due to the principle of uncertainty. To specify, which between the following two would be closer to the truth? (1) They are "roughly" located at the same spot, which is enough for practical purposes. (2) They are quite literally at the exact same spot, although it is not well-defined precisely at which spot they are colocated.