"The Gurus of Unix Meeting of Minds (off. to Unix geeks)" joke

Just received this from my friend Sathyakama. He got it from /etc/fortune
If you don't understand Unix you will miss most (if not all) of this joke. Apologies in advance. To the rest, read on and laugh on! I was ROTFL!
The Gurus of Unix Meeting of Minds (GUMM) takes place Wednesday, April 1, 2076 (check THAT in your perpetual calendar program), 14 feet above the ground directly in front of the Milpitas Gumps.
Members will grep each other by the hand (after intro), yacc a lot, smoke filtered chroots in pipes, chown with forks, use the wc (unless uuclean), fseek nice zombie processes, strip, and sleep, but not, we hope, od.
Three days will be devoted to discussion of the ramifications of whodo. Two seconds have been allotted for a complete rundown of all the user-friendly features of Unix.
Seminars include
"Everything You Know is Wrong", led by Tom Kempson
"Batman or Cat:man?" led by Richie Dennis
"cc C? Si! Si!" led by Kerwin Bernighan
and
"Document Unix, Are You Kidding?" led by Jan Yeats.
No Reader Service No. is necessary because all GUGUs (Gurus of Unix Group of Users) already know everything we could tell them.
- Dr. Dobb's Journal, June '84