I had never really made the connection before this, but Sherlock Holmes practices a form of the so–called Joy of Missing Out. I’ll come to that in a moment; first we need to understand what JoMO is and, parenthetically, what FoMO is.
The Fear of Missing Out, or FoMO, was added to the Oxford English dictionary in August of 2013. It is defined as anxiety that an exciting or interesting event may currently be happening elsewhere, often aroused by posts seen on a social media website. I think we can do away with that last clause: FoMO is not restricted to social media alone and is as rampant offline as it is on the web.