Right tool for the job. Static typing works well for systems software. Eve is aimed at scripting / knowledge work, where you are mostly manipulating collections

Right tool for the job. Static typing works well for systems software. Eve is aimed at scripting / knowledge work, where you are mostly manipulating collections of messy data and it's useful to be able to start with a loosely specified program and only nail it down with types once it settles down. Imagine a relational database where you can vary between setting every column to Any and not caring about relationships, or strictly typing everything and adding integrity constraints all over the place.