As someone who has spent almost 20 years (on and off) writing C and C++, I don't believe it. C/C++ lets you go as close to hardware as you would possibly want. Want SIMD? Easy. Want custom memory allocation (a big deal if you allocate/deallocate a ton)? Sure, why not. Want to profile and optimize cache locality and memory layout? Knock yourself out. Memory alignment? Yup. Branch hints? Of course. I could continue with this, but as someone who has written performance-sensitive code you already know most if not all of this. It's not a coincidence that e.g. high performance linear algebra libs are written in C.
And it baffles me that anyone would even consider writing 100KLOC+ project in something as lax as Python. That's just asking for trouble.
And it baffles me that anyone would even consider writing 100KLOC+ project in something as lax as Python. That's just asking for trouble.