I think the death of conventional Dennard scaling and Moore's law is part of why interpreted super-dynamic languages like Ruby have lost their luster. We can no

I think the death of conventional Dennard scaling and Moore's law is part of why interpreted super-dynamic languages like Ruby have lost their luster. We can no longer just ride CPU performance increases to get increasing application performance, so these languages' implicit slowness becomes a liability that won't just go away magically. My optimistic hope is that the death of easy CPU performance gains will lead to a round of serious evolutionary improvements in software architecture. Rust is probably a sign of that happening.