But this is not at all what you said in the parent post. You said &quot;Rust is in a category of performance that GC languages never reach in practice&quot;.<p>This is not a claim about safety.<p>Every time I have benchmarked something, Nim has turned out faster than Rust - or anything else, for that matter. Yet, Nim does have a GC. But since one can allocate on the stack, and it is per thread, it is not a bottleneck.<p>About safety: you can tune it with compile time flags, or even annotate per function what checks to leave.<p>So, <i>please</i>, stop spreading FUD about Nim.