I don't know if this is a common trend among us betas with in our ego and id, but today I experienced the very eerie feeling of seeing my dual (ESTP) in the flesh and immediately afterwards experiencing a flash of momentary insight or something akin to a kind of metaphysical awareness. It seemed to me that this experience was beyond the boundaries of attraction, because I didn't even get a decent look at his face when this happened! It was only later when I had a chance to speak with him at great length that I realized that he was in fact my dual. This could just be my dominant Ni taking over, but could it be that the instantaneous realization of your dual is possible?