Look at the following data, and you will know:

14+genius or near genius (born or acquired)

12-14 with excellent intelligence (16-18 years old)

11-12 with high intelligence (around 13.16 years old)

9-11 with average intelligence (.

7-8 is between slow and low energy (each can be classified as low energy) (slow, low energy or 7-9 years old)

below 7, it is determined as low energy (low energy or 5-7 years old)

This is a statistical data, and the statistics based on the relationship between age and knowledge growth are not the whole truth. Please don't take this as your criterion for being a human being.