The discussion centers on the interpretation of wave fields in quantum field theory (QFT), specifically whether the trajectory of the wave represents the classical trajectory of particles created by the field. It suggests that the probability amplitude or number density amplitude of particles propagates as a wave. References to Gleason's Theorem and Soler's Theorem are provided to support the discussion. The conversation hints at a potential second quantum revolution in understanding quantum mechanics, though progress is noted to be slow. Further exploration of these concepts is encouraged in the interpretations section of the forum.