alt Hacker NewsThe quoted text says "slower". It does not claim that GC makes those languages slow overall.
Are you arguing that GC is not inherently slower than other memory management strategies (e.g. the Rust approach)? Or just that the cost is not worth optimizing away?
Of course GC is not inherently slower than other memory management strategies. Not only because GC is not a "memory management strategy" but a wide spectrum of them, but also because some GCs are used to speed up memory management compared to low-level languages. Dynamic heap allocations in low-level languages is often minimised because it is slow; some GCs are used to solve this problem.