FYI; the Guile schemers have had several discussions that may be of interest to the Parrot personnel regarding copy on write strings and shared substrings. Perhaps they thought of something you have not? I imagine they must have a list archive you can find.
-- As any limb well and duly exercised, grows stronger, the nerves of the body are corroborated thereby. --I. Watts. We are deB.ORG; You will be freed. <URL:http://www.debian.org/social_contract>
