What is the gamma distribution
Show how the gamma is the conjugate prior of Pois(λ)(\lambda)(λ)
Give an intuitive connection between λ\lambdaλ ~ Gamma(y,t)(y, t)(y,t) and TnT_nTn ~ Gamma(n,λ)(n, \lambda)(n,λ) explaining why they represent the same thing
Gamma AND Beta? change post to introduce both?