Final answer:
The intended audience of Hartley's TED Talk can vary, but TED Talks typically target a broad audience interested in the topic. Without specific information about the talk, it is difficult to pinpoint the exact audience. Generally, TED Talks are aimed at educators, students, professionals, and lifelong learners.
Step-by-step explanation:
The intended audience in any given TED Talk can usually be inferred from the content of the talk and the speaker's approach. In Hartley's TED Talk, without additional context about which Hartley or which TED Talk is being referred to, it is difficult to provide a specific answer. Generally, TED Talks are aimed at a wide audience with an interest in the topic being discussed, which often includes educators, students, professionals, and lifelong learners interested in ideas worth spreading.
If the talk is on a specialized subject, then the intended audience might be professionals or students in that field. If it is more general, then the audience could be anyone interested in the topic. Understanding the content of the talk would provide clues to the target audience, for example, if Hartley discusses a topic related to social issues, the talk may be intended to raise awareness among the general public or to influence policymakers and activists.