[deanCommie]

> In this case, Google or FB will not be able to tell you how they drew the connection, because even they won't know. All you can assume is the AI engine will take dozens of parameters today and hundreds tomorrow.

Sure there are ways to implement systems like this where you can't understand what they are doing. Just like you can launch websites and webservices without any metrics, monitors, or logging.

But why would you?

It requires more work, and it makes the underlying architecture more complicated but any sensible organization with a good engineering excellence fundamentals would ensure they can introspect and debug the outputs of any production algorithm.