The Curse of Knowledge makes it hard for you to communicate knowledge or information to less informed people.
Just think of a business consultant with vast knowledge and expertise who is unable to understand how little you know about an issue so he or she uses so many abstractions, so much industry jargon, that you cannot possibly understand the essence of what they are saying.
Candidates for executive positions frequently struggle with this Curse of Knowledge. They stumble in an interview because they fail to communicate impact points in a succinct manner. They do not comprehend how little the potential employer appreciates their career accomplishments or potential value to the organization.