*This post is motivated by a request from JHEP to review a recent article by Anton de la Fuente. I am grateful to the author for stimulating correspondence.*

#### The conformal bootstrap: analytic vs numerical

#### The critical Ising model is described by a unitary conformal field theory. In two dimensions, that theory is part of a family called minimal models, which can be exactly solved in the analytic bootstrap framework of Belavin, Polyakov and Zamolodchikov. Minimal models are parametrized by two coprime integers 2 ≤

*p*<

*q*, they are unitary when

*q*=

*p*+ 1, and the Ising model is the case (

*p*,

*q*)=(3, 4).

These 2

*d*bootstrap results date back to the 1980s. More recently, the bootstrap method has been successfully used in higher dimensional CFTs, such as the 3

*d*Ising model. While the basic ideas are the same, there are important technical differences between 2

*d*and higher

*d*.