It's also a case where making that investment is worth it given the core nature of the MSVC standard library which makes it integral to a universe of other soft

It's also a case where making that investment is worth it given the core nature of the MSVC standard library which makes it integral to a universe of other software. The global impact of a 5x improvement in something in every app makes it a no-brainer. But there's a lot of debt out there that will be replaced before the payoff ever comes. Interesting Fermi problem for sadistic interviewers: what would be the global energy saving per invocation of this vim function if a 5x performance improvement were to be found?