What is that about "premature optimization" and "the root of all evil"? O(n) arguments are all very well as long as you keep in mind that, ehem, there are cons

What is that about "premature optimization" and "the root of all evil"? O(n) arguments are all very well as long as you keep in mind that, ehem, there are constants all around and they usually tend to be pretty big. So a more honest title would be "linked lists may harm your efficiency in high-speed environments". Notice the 'may' and the context. The title implies straightaway "stop using LISP", which to my taste is a rather bold statement.