> We now write everything in one of the worst and least optimizable languages this side of TCL, and that doesn’t hold back deployment.

Javascript?

If so, why do you say it's a least optimizable language?

Do you mean for ahead-of-time single point in time static compilation, rather than code evolving within a JIT afforded real runtime statistics?

I don't have numbers but as an old optimizing compiler person I'm asking because it's plausible you know datasets i have not seen.