AI is no longer a tool. It has become an employee.
Until recently, marketing was driven by people: a person gathered the data, built the audiences and sent the campaigns. Today an AI agent runs that entire loop at a speed and scale no team could match by hand - it spots a signal from the customer, makes a decision, acts and learns from the outcome - while people set the direction and safeguard quality.
An agent, however, is only as good as the data it knows. That is why the real advantage is not public sources but a brand's own data about its customers - especially in a world where third-party cookies are disappearing. The winners are those who keep that data and truly put it to work for results.