We no longer use memoization except for older code. New code has anything that needs to be memoized defined in the initialize method. This solves a lot of prob

We no longer use memoization except for older code. New code has anything that needs to be memoized defined in the initialize method. This solves a lot of problems and Sorbet typing is what encouraged us to go this route. Now there could be a branching problem - one branch will not need to call the expensive thing another would not. In reality I have found this never to be the case in our code base. May be different for your designs.