you want to know what is especially tragic about this. in the original version you learn that the boy that dr. riddles lost on the operating table was actually his grandson.
Technically he was waiting for old age to kill him ever since he failed to save his grandson during a surgery he was responsible for. This left him greatly depressed and if not for Kid giving him the motivation to do something he would have waited for death.
Given his incredible knowledge and his ringed pupils, could it be possible that Dr. Riddles unlocked the Answer Talker? Maybe feeling dead inside after failing to save his grandson on the operating table was deemed close enough? Correct me if I'm wrong .
