The Blub Paradox

If Lisp is more expressive than C, why Lisp can be compiled into C and C cannot be compiled into Lisp?

>>16

OpenCL is C89 with hardware extensions.

No, it isn't

CUDA supports C++11 partially.

And?

C is often used with compiler extensions.

And?

C is designed to exploit the hardware for maximum performance and this requires close interaction with the machine(and sometimes inline assembler).
And?

Plenty of hardware-specific non-standard extensions exist. Its not the C committee privilege to decide what extensions are used.

Nothing to do with what I said.

This a quote from the C standard that clarifies the C 'register' does not create any dependency on hardware registers.

We know that.

As for the rest, what do they have to do with the topic? Absolutely nothing.