[gdxhyrd]

Sorry, but all those are buzzwords.

In C/C++, I can do live debugging, reverse-time debugging, edit-and-continue debugging, multi-device debugging, multi-threading debugging... We also got language servers, on the fly retesting and recompiling, all kinds of profiling... All that with free or open tools readily available, not to mention paid, proprietary ones.

In higher-level languages, fancy features are even more prevalent.

So, what are we missing exactly from Smalltalk?

[coldtea]

You have everything in a subpar way. Smalltalk has it first class.