Good ideas and where to find them

I am watching Doctor Who, and in next week's previews, there is a concept I have been exploring in the last year. There are times when these ideas are so close the mark, not this one, but others, when one wonders if there is a reason to be paranoid. Is someone watching me and stealing my ideas?

No, no, that is silly nonsense.

What is more likely, the patterns of thought exploration aligned with what we are sharing. If your diet of entertainment is all Star Wars, you have a different sense of...