[monocasa]

Pretty much all of the benefits provided by the hardware of lisp machines are provided by modern CPUs, just in more general ways.

Most of the benefit was pushing their interpreter into microcode, leaving more of the data bus free for actual data. Now we have ubiquitous icaches which give you a pseudo harvard architecture when it comes to the core's external bandwidth.

Some of the benefit was having a separate core with it's own microcode doing some of the garbage collection work. Now we have ubiquitous general multicore systems.

Etc.