A feedback loop is the part of a system in which some portion of that system’s output is used as input for future behavior. Generally, feedback loops have four stages.
Step 1: The learner receives ‘input’—as an external stimulus or observation of some kind, for example
Step 2: That input is stored as data
Step 3: That data is analyzed and conclusions are drawn by the learner
Step 4: The learner anticipates future application of those takeaways in future decisions
That’s a feedback loop. And that feedback loop—coupled with an ongoing and fluid system of increasingly complex pattern recognition—is how the human brain learns.