Comment by flohofwoe

Newly created programming languages specifically tailored to GPUs (e.g. all the shading language dialects like MSL, GLSL, WGSL, HLSL, ...) are not limited by backward compatibility restrictions to C - and the execution model of GPUs is very different from traditional CPUs, yet all those languages turned out not much different from C extended with a handful new types and attributes.

Intels iAPX 432 had failed because it couldn't beat the much simpler, faster and cheaper, 'stop-gap' x86 design, not because of some C or PDP-11 conspiracy (and the Motorola 68k was much closer in spirit to the PDP ISA and a 'better fit' for C, yet it also lost against the rather crude x86 design).