According to McKinsey, people usually remember one, two, three, but not four, five, six, so everything should be summarized in less than three. This is now widely circulated in the business world "30 seconds elevator theory" or "elevator speech".
In most people's job hunting experience, there is more or less job hunting anxiety. Some are anxious because they have submitted hundreds of resumes without any response; Some are anxious because they are eager to enter a company, but their own abilities are insufficient; Some are anxious because there is no following after each interview.