I think a simpler language would also have more potential for speedup. The effort PyPy has invested is herculean! Grumpy, Cython, Unladen Swallow, etc. Python

I think a simpler language would also have more potential for speedup. The effort PyPy has invested is herculean! Grumpy, Cython, Unladen Swallow, etc. Python has fallen to my second or third most commonly used language now and speed is definitely a reason.