So what?! Look at most programs today that are written in C, and it's patently clear that it is much, much closer to the PDP-11 instruction set than any Intel architecture has ever provided. So, why are we all using C-compiled applications on x86 boxen? Oh, and PowerPCs and other RISC processors are even *more* fundamentally different from the original PDP-11 instruction set still.
Well...not all of us are using x86 boxen. 8-P [dave dives for cover]
-Dave