[IceDane]

Effect is unreasonably effective. Pun etc.

The problem with these concepts is a) they are completely opaque to the common chud programmer and b) they are just not available to people in languages that anyone actually uses. There are a bunch of effect libraries in Haskell, even special efforts to make them work better in GHC, but it's nearly all wasted effort because it's just academic circlejerk.

Effect brings these capabilities to the masses by implementing them in the most popular programming language on the planet. Obviously, there is quite a learning curve -- it is essentially a programming language unto its own inside another programming language -- but it's doable. I've onboarded juniors with close to 0 FP experience into an Effect codebase. The guardrails help a lot. The language server which helps with best practices, the type errors themselves help quite a lot.

Arguably the best way to do Effect would be a separate programming language, but that would just give us the problems Haskell has: nobody would use since there would be no ecosystem, and there will be no ecosystem since nobody would use it.