The Count of Monte Cluster

Model-independent parametrizations of modified gravity have attracted a lot of attention over the past few years, with there even being a claim, later retracted, that a deviation from General Relativity had been detected. Numerous combinations of experiments and observables have been suggested to constrain these parametrizations, and future surveys look very promising. I will look at some of the previous results and forecasts, before adding galaxy clusters into the mix and examining whether cluster counts, particularly from the SZ effect, could improve the constraints. This document is composed of the slides of the presentation. (author)