Due to time constraints and the pandemic, I regret that I cannot be in Beijing in person. The audio quality may be subpar since we're not using professional video conferencing equipment. Voices are only clear at the speaker's podium; when others speak,...

Thank you to ISCS for organizing this lecture and to Professor Zhou Weichi for moderating. I feel my presentation wasn't particularly strong—perhaps the topic of sin theory is too complex. Though I reviewed relevant literature thoroughly, I still feel ...