C++20 concepts enable complete conceptualization of the C++ language. No longer does your
code have to actually do anything. Rather, it can conceptualize concepts into
abstract templated classes purely for aesthetics with no functional
value.
The conceptualization brought about by C++20 concepts demonstrates how C++ is becoming less of a "practical" language and more of a "toy" language. You literally spend most of your
fucking time creating the most contrite complex way to represent an otherwise simple object using templates, enums, const, constexpr, and other stuff. It's fun and it gets you high, but you ultimately waste most of your
time figuring out the most expressive possible way to write
code and totally lose sight of the end goal of actually getting stuff done and making things happen.