A Review of ``Phantom Stacks: If you look too hard, they aren't there'' by Richard Stallman

This work may be found in the menu which links to this document.

This is a paper describing a technique of efficient stack implementation in a Lisp system, detailing
how to cope with the cases where a stack discipline is commonly followed, but cannot be relied upon.

The Phantom Stack method is thought-provoking, bringing to mind other techniques for avoiding costly
edge cases, common to older computing; this technique is titular.  Stallman's writing style compares
it to how the CIA operates, a reflection of an attitude from a time when hackers were truly hackers.

The paper can be read in little time, and so a more detailed review is unwarranted.
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