> This is much more pleasent. Since the program is always in a somehwat valid state as you type it, your editor is able to guide you towards the Pit of Success.

> This is much more pleasent. Since the program is always in a somehwat valid state as you type it, your editor is able to guide you towards the Pit of Success. Although the subtitle was “programs should be valid as they are typed”, it’s weakened to “somewhat valid” at this point. And yes, it is valid enough that tooling can help, a lot of the time (but not all) at full capability. But there’s also interesting discussion to be had about environments where programs are valid as they are typed. Syntactically, especially, which requires (necessary but not sufficient) either eschewing delimition, or only inserting opening and closing delimiters together.