The discussion centers on the concept of whether photons can be considered to have mass, as suggested by the equation E=mc². Participants argue that while photons possess energy and momentum, they are defined as massless particles in the framework of modern physics, particularly through the relativistic energy-momentum relation. The idea that photons might have mass is challenged, with explanations emphasizing that energy, not mass, is what interacts with gravity. Some participants express confusion over the implications of massless photons and their behavior under gravity, noting that energy itself contributes to gravitational effects. Ultimately, the consensus leans towards the understanding that photons are massless, despite ongoing debates and the complexity of the topic.
I personally spell "esophagus" for dull scientific stuff, but "colour", "flavour" and "amoeba" for more exciting stuff.