The speaker discussing moving averages. He talks about why they are useful and how to trade them. He uses exponential moving averages in his trading and uses them to spot trends and provide building blocks to other technical indicators such as trend lines, fibonacci retracements, etc.
He talks through the difference between exponential moving averages and simple moving averages and mentions how EMA's will weight the current action more heavily than older price action.
He provides a practical illustration on the uses of moving averages and suggests that they can only be one part of your overall trading strategy, not the entire strategy itself.