If after learning about tontines you are at least willing to give them the benefit of the doubt and you start to wonder how big could these products become, the best place to start is by looking at total retirement savings of baby boomers and a comparison to the current annuity market. Here McClelland examines the total addressable market for tontines and in a final comparison explains why the problems with annuities make it almost certain that tontines will gather some amount of market share.