Deep nesting vs early returns

[Rémy Mouëza]

On Tuesday, 2 October 2018 at 18:14:55 UTC, Andrei Alexandrescu 
wrote:
> Kate Gregory makes a good argument on something I've often 
> commented in code reviews: https://youtu.be/n0Ak6xtVXno?t=2682

I've found a good explanation for the reason behind nesting here:
https://softwareengineering.stackexchange.com/a/118793

The "single entry, single exit" principle seems to predate 
structured programming. It was a best practice of a time when 
gotos and other jumps were preventing the call stack to be 
properly cleaned up or local variables to be initialized thus 
leading to  difficult to debug errors.