If you are talking to a friend on your cellphone and the connection breaks up for a few seconds, you may miss some words, but you can grasp the main idea by automatically guessing what your friend said. This is an example of the principle of .

Who should have a career portfolio, and how often should it be updated? only artists need a career portfolio, which they should update after every gallery show. everyone should have a career portfolio, which they should update daily with their professional activities. all students should have a career portfolio, which they should update ever semester until they graduate. most professionals need a career portfolio, which they should update with regularly with important achievements.