“How do you include an undefined and unknown possibility?”
I don’t think we should. Information-from-intelligence is not undefined or unknown. We are all familiar with it. That is why I would include it as a potential cause whenever we observe information.
Information-from-intelligence is a misnomer. You've seen people create information. They utilize their intelligence to do that. They also expend energy in the process. The intelligence is no more a direct cause of the information than the energy was.
What's required is an intelligent entity.