scalaz/scalaz — comment on commit e12f904fd818191894c9bb532f45dce1155a5eac
File:  line 0
By rwallace:

Why have ReaderT at all? It's isomorphic to Kleisi. In the scalaz7 branch we simply had

type ReaderT[A, F[_], B] = Kleisli[A, F, B]
type Reader[A, B] = Kleisli[A, Identity, B]

Worked great!