> but you’ve lost the benefits of a simple date I see what you mean - thanks! > you could further choose to turn it off or to substitute your own types / sche

> but you’ve lost the benefits of a simple date I see what you mean - thanks! > you could further choose to turn it off or to substitute your own types / schema without making changes to the system / code This is still unclear to me. How can you make changes (turning off gradual typing/substituting your own schema) without making changes to code?