Smarter applications
Machine learning has helped companies build applications and products such as chatbots that perform specific tasks for end users without the need for human intervention. Some common examples are voice assistants, such as Cortana, which actively learn to help us become more productive with our day-to-day tasks.
Other examples are online games in which you can easily track your performance against everyone in the world. You can see how you rank against other players, what areas you excel in, and how you can improve.
The amount of tasks you can perform with rich data is virtually limitless, but in order to perform them, you need to have the right approach and infrastructure to handle a high level of scaling.