Adnan meets a young woman at the gym. They hit it off and eventually get married. Says Adnan, "I knew when I woke up that morning that something special was going to happen." What cognitive bias is affecting his thinking, charmingly romantic though it is?

The hindsight bias

Explanation:

The hindsight bias -

The term is used in the field of psychology , which enables to brief the capability of the person to overestimate the ability in order to forecast any outcome , which is very difficult to predict , is referred to as the hindsight bias .

In other words ,

It is the capability to forecast any event considering it to be predictable than it usual is .

The indication of a hindsight bias is " I knew it ".

Hence , from the given scenario of the question ,

The correct answer is - The hindsight bias .