I like and agree with the article, but: an attempt was made to port part of that code (the planner) from Lisp to C++. After a year that effort had

I like and agree with the article, but: an attempt was made to port part of that code (the planner) from Lisp to C++. After a year that effort had to be abandoned because the planner team just couldn't make it work. I'm sure they'd struggle just as much if the planner was written in assembly, and not because assembly is a far more elegant language...