The design choices that make it slower can’t be mitigated either in theory or practice. C++ competes against other languages that make virtually identical trade

The design choices that make it slower can’t be mitigated either in theory or practice. C++ competes against other languages that make virtually identical tradeoffs that are far more mature and which have never closed that performance gap in a meaningful way. For the high-end performance-engineered cases that C++ is famously used for, the performance loss may be understated since it actively interferes with standard performance-engineer techniques. It may have a role in boring utilities and such but those are legacy roles for C++. That might be a good use case! Most new C++ code is used in applications where something like Fil-C would be an unacceptable tradeoff.