Not true at all, there are 20-50x speedups for some of the functions that have been optimized into Go assembly. Specific cryptography routines for which CPUs ha

Not true at all, there are 20-50x speedups for some of the functions that have been optimized into Go assembly. Specific cryptography routines for which CPUs have dedicated instructions. Those are the kinds of places where you'd use it. If you want to write assembly because you think you can generate better code than the compiler, you probably can, but it also almost certainly will be underwhelming as you say. It's only really worth it when you're using instructions the compiler won't emit, like specialized crypto, math, bit counting instructions, or SIMD instructions.