1. A tunable system to deliver communications, comprising; a processor configured to execute computer-readable instructions, the computer-readable instructions including instructions for: storing a policy relating to delivering a series of communications to a user, the policy including a set of parameters initialized to facilitate delivering the series of communications at a default frequency; tuning the policy according to a contextual profile selected from a plurality of contextual profiles, each of the plurality of contextual profiles associated with a scalar; and matching a state of the user to a contextual profile that does not contradict the state, wherein the tunable system is configured to throttle the default frequency as a function of the scalar associated with the matched contextual profile.