> The Plan9 project started in 1980, took around 9 years to be solid > enough to be usable and that too by the internal and, or lab people > [http://plan9.bell-labs.com/sys/doc/9.html] only.
unless one is speaking in geologic terms, there's a significant difference between the "mid-1980s" and 1980. in fact the quote is "Plan 9 began in the late 1980's...". and "... by 1989 the system had become solid enough that some of us begain using it as our exclusive computing environment." i'd encourage you to read your source material. - erik
