> ZII for local variables reminds me of the SmallTalk / Obj-C thing where you could send messages to nil and they're silently ignored. I don't really know Small

> ZII for local variables reminds me of the SmallTalk / Obj-C thing where you could send messages to nil and they're silently ignored. I don't really know SmallTalk, but in Obj-C, to the best of my knowledge most serious programmers think messages to nil are a bad idea and a source of bugs. Yet, after a decade of embracing Swift that tries to eliminate that aspect of nil handling in obj-c, Apple software is buggier than it's ever been. Perhaps not crashing on every nil in large complex systems does lend itself to more stable system.