K shot just to know how terrible the pendulum he created was.

Many incomprehensible mysteries have been proved by science, such as "soul", which seems to be interpreted by science as something similar to a magnetic field. So is divination. The rotation of the pendulum is interpreted as muscle vibration, but it is also inseparable from the influence of "magnetic field", "mind" and "subconscious". The pendulum divination still has certain accuracy. You can try it if you are interested.