"But these are just your guesses." After listening to Leonard Ethan's series of analysis on the current situation, Joan thought for a while with her chin on her hand, and then said.
"Although your guesses are very reasonable, you have told me before that historians in this area must learn to doubt everything. From this point of view, I think the current evidence is still somewhat insufficient."
"Very good, learning to doubt is often the beginning of finding new discoveries." Seeing Joan's questions, Leonard nodded with satisfaction, feeling happy about her progress.
"Since you think the current evidence can't directly point to the truth, can you now say what evidence is needed to prove the analysis I just said without direct evidence?"
"I think the key evidence now is the opponent's activity trajectory in China, after all, that 150mm Jin-made artillery, according to records, was only produced in two units, so it is difficult to determine the specific situation of the designer."
