I dislike when people claim C runs on every machine type. Show me the C compiler for the GA144, an eight-by-sixteen array of F18A Forth stack machines with small memories. Oh, but clearly C wouldn't run on those, so what was actually meant was C runs on every machine, except for those which it doesn't, which is tautological. Even if someone claims a C compiler could be written, the same then applies to Lisp, and this reveals the farce. C runs very well on machines which go through contortions to resemble a PDP-11, and poorly on those which don't.
Comparing computing becoming ever more opaque to Lisp fading away is befitting the circumstances. People are all too happy and ignorant to question why running hundreds of millions of lines of code on impenetrable machines is a bad idea. The electronics would be more efficient, unburdened by all of this, but that's too much effort for people to even consider, since everything is good enough, and the trend is only going further in removing control and obfuscating.