"It's just about using the hypothesis of energy quantum to explain the photoelectric effect," said Lucien honestly with a constant smile on his face.
The corner of Fernando's mouth twitched a bit. "You call this 'enlightening'… I don't think there are arcanists who want to be enlightened like this."
Fernando and Lucien had excluded all the other possible explanations together, and the only possible answer left was the hypothesis of energy quantum. Therefore, after the initial reluctance and struggle, Fernando was the one who accepted this hypothesis the most. However, even so, Fernando would only use it when analyzing the black-body radiation, but never in any other fields.
Then Fernando mumbled. "So you want to use the hypothesis to build your own system?"