[pizza234]

> Because of lazy evaluation, type issues persist though. Plenty of instances of trying to call string methods on integers, and array methods on nil, and Rails devs in denial that that's a big problem as the app continues to grow.

This is not anymore inherent in the language. Gradual typing support for Ruby is now reasonably mature (companies like Shopify with large codebases have adopted it), so it's up to the team do decide if they want to take advantage of it or not.