I always interpreted that quote to mean that implicit nullability was a mistake. It's fine to have nulls, but not five to have them pop up anywhere randomly. C

I always interpreted that quote to mean that implicit nullability was a mistake. It's fine to have nulls, but not five to have them pop up anywhere randomly. Capital letters are fine, but not if they randomly pop up when you thought you were only working in lowercase, and now suddenly all your string comparisons need a .toLoweR() on each side of the ==.