What is knowledge? How is it acquired and what are its limits? Join us as we question the hypothesis of knowing from Bayesian statistics (How is truth updated? Can it be changed?) to philosopher Rene Descartes' evil genius demon (and obsession with wax) to political disagreement. If we know something because we know something else which we know due to something else, how do we find out what's at the end of all this knowing? Our proposal: the chair!