It's one of the tenets of self-help, "pull yourself up," personal self-esteem talk that one should not be worried about what other people think, either in the context of doing something stupid or in general concern about constraining your actions based on the opinions of others, because most people are too busy thinking about themselves and their own issues.
What if, though, if being concerned, or speculating, or imagining, or other contemplative gerund, is what makes someone prone to be a writer? What if thinking about what other people are doing, thinking, etc., is one of the ways one can intuit that they should be putting stories to paper, or on video, or otherwise getting them out to the world? And what a double edged sword to be a person who is often thinking about what other people are thinking, projecting that they might be doing the same and therefore caught up in a spiral ("Spiral out!") of "What are they thinking? And is it about me?"
And can I assume this is so, and that I can use that as a lever under me to write more and/or whole things and not just the fragments that litter my hard drive and file boxes? Hmm.