Unrelated Photo-based Meterology

I was working help desk and got a call from a user who wanted me to predict the weather based on a photograph she had. I had to go to great lengths to explain why this was impossible. I woke up thinking that I could use this dream to accurately describe how difficult it is to communicate to non-computer-literate users, but after a few cups of coffee I found that the dream didn't make nearly as much sense as I thought it did, and at any rate, I couldn't remember the conversation I had in the dream any longer.