Data does not just happen; it is created in specific and deliberate ways. It is generated by sensors, not babies; and those sensors are designed to measure specific parameters for specific reasons, at certain rates, with certain resolutions. Or more correctly: it is gathered by people, for specific reasons, with a certain view of the world in mind, a certain concept of what the problem or the subject is. The people use the sensors, to gather the data, to measure a certain chosen aspect of the world.