The discussion revolves around the interpretation of the double slit experiment in quantum mechanics, focusing on whether photons behave as particles or wave functions during the experiment. Participants express confusion over the nature of photons in relation to observation, with some emphasizing that the photon acts as both a wave and a particle, depending on whether it is observed or measured. There is a call for clearer experimental setups and data rather than abstract interpretations, signaling a need for tangible, empirical evidence in discussions about quantum mechanics. Comments highlight a frustration with metaphorical discussions, emphasizing the desire for a concrete understanding of how quantum mechanics operates in practice, including the details of experimental design and measurement processes.