"Next, to enhance the randomness of this magic act, let us randomly pick a number between one and ten..." Inside a coffee shop, Su Xiaoou was performing her magic to a lucky audience member.
Behind that table, Jiang Shu, using the camera angle of a small tripod, watched Su Xiaoou's performance, and although only half finished, he had already grasped the gist.
It was a card trick involving spirit magic, which by the effect seemed like a basic version of ACAAN, but the principle was not card control or psychological knowledge, but a mathematical principle.
Strictly speaking, it was a strong selection, the audience's choice would in the end be guided by the script and mathematical principle to the same answer, which naturally was the one she had prepared in advance.
Su Xiaoou soon finished her performance, smiling and waving her hands, slowly fading from their line of sight amongst the astonished gasps of the audience.