@vitaut Thanks!
The movie mentions it is (almost) impossible to take away a standardized feature.

I am proud that I am guilty of adding features to the C++ library that enabled us to get rid of another feature deprecated from the start: strstream and its companion types.

(spanstream and efficient access to stringstream internal buffer)

the horror of C++ features remains, but I think learning C++ from me hides the horrors well enough that you can ignore or embrace them safely.

@PeterSommerlad @vitaut We cannot 100% remove some features.

We need something to remove features from 99.9% of the code so we know it is not used there, leaving the 0.1% with time to inspect closely. And for many code bases that will be 100% of their code anyway.