CLEAN : Palestinians demonstrate in support of hunger-striker in Israeli custody

The video transcript contains a brief statement expressing uncertainty or lack of knowledge.

What does the phrase 'I don't know what' imply about a person's state of mind?

In what situations might someone express uncertainty with the phrase 'I don't know what'?

How can the expression 'I don't know what' affect communication between individuals?

What are some possible reasons for someone to say 'I don't know what' in a conversation?

Can the phrase 'I don't know what' be seen as a barrier to understanding? Why or why not?