🚀 go-pugleaf

Have to agree with Nathaniel, I wouldn't claim that what we have is a
good representation of time-sequenced multimedia events.  In fact, as
it stands now a Slate document (nee Diamond), doesn't have any notion
of time-sequenced events.  Speech and video can be embedded in a document
but are only played when explicitly invoked.  You could probably get part
of the way along using that capability and the document extension
language, but I haven't tried doing it so I can't make any claims right
now.

Other activity that I know about that seems pertinent is the Athena
Muse work at MIT, designed primarily as a tool for developing interactive
video instructional materials, and Polle Zellweger's work at Xerox PARC
on Scripted Documents.

Terry Crowley