A Letter from Xanadu is an interesting look inside Ted Nelson's Xandu project.

With the Sun workstation's bit map graphics capability, we can now start working out he best way to visually display links.

That sounds almost like it's 1992 and the web is being built.. but no, it's a decade earlier.

"Three-sets", the part of the system which allows a programmer to include information about a link other than where it connects to, are now implemented.

And, of course, tried to do things that are still not available on the web today.

We recently fed a document of .75 megabytes into the system. Linkages within this document and from others have been made and tested; this is demonstrable proof that the Xanadu Hypertext System can handle large databases without degrading response time.

Ah, it's still 1982 after all!