4.5 What is talktivity?

The level of someone’s talking energy in a moment or situation. It describes how actively a person speaks, how much they contribute to a conversation, or how lively the overall talk feels.

Summery 

A child is made by the parents. The child get qualities from the parents

The child’s qualities can be better in percentage than the parents by mutation or lesser in percentage than the parents or can be totally missed from the parents which happened in the given example above.

The child missed being extroverted which his parents are.

If the child misses to be extroverted, naturally he becomes introverted 

Because extrovertism contains talktivity, confidence, non-overthinking where introvertism omits those traits. So naturally the child’s brain’s extrovertism slot is empty.