I'm a customer of yours. I'm in your target market (guessing: technical person who wants a proper backup solution). However, I would never have found or bought

I'm a customer of yours. I'm in your target market (guessing: technical person who wants a proper backup solution). However, I would never have found or bought your product if I hadn't seen your link on a thread on HN about git-annex a few days ago. If I hadn't followed that link specifically from talking about a project I'm really enthusiastic about I doubt I would have bought. > It is because I don't want to serve the people that it would be effective on. If you remove the set of all people it will be effective on from the set of all humans then you will get ∅.