Two o'clock in the afternoon.
Still in the Jin Ling University's old campus grand auditorium.
Even though there were one-fifth fewer people attending compared to yesterday, the scene at the venue was still quite lively.
Lu Zhou was standing on stage. He was writing on the blackboard while explaining at the same time.
Once the blackboard was filled, a staff member quickly dragged another one and neatly placed the blackboard on stage.
The staff went on stage five times in total, there were six fully written blackboards.
When Lu Zhou wrote down the last line of the equation for the general solution, the audience stood up in excitement.
Thunderous applause spread like a tidal wave, filling the entire report venue.
Edward Witten was clapping. He looked at the blackboards on stage and smiled. "Thank God I didn't leave early. Otherwise, I would have missed this historic moment."