The document discusses the uses of "be going to" and "might" when making predictions in English. It states that "be going to" is used to express a planned or decided future action, while "might" expresses a possible but undecided future action. It provides examples of using each, such as "I'm going to travel to Otavalo" to express a decision versus "I might travel to Otavalo or Esmeraldas" to express possibility.