Four months ago, our team launched Mirror Crowdfunding. We have had a number of successful campaigns - attracting a median participation of 54 backers per project, and raising a total of over 134 ETH ($351,400 at time of writing) for books, essays, software, newsletters, and public goods. This essay is a critical exploration of the success of Mirror Crowdfunding so far. I also argue that a rare combination social exchange underlies these campaigns - generalized and productive.What is a Mirror...