[lelanthran]

> And just like that, you find yourself implementing a compiler (specs to plan) and a virtual machine (plan to actions)!

Not just any compiler, but a non-typesafe, ad-hoc, informally specified grammar with a bunch of unspecified or under-specified behaviour.

Not sure if we can call this a win :-)

[nvader]

Greenspun's tenth rule in action!

[sharno]

It can be type safe and testable with free monads