yesterday was day 3 of the #GratefulDead caucus at #PCA in chicago. powerful presentations by annabelle walsh & kenneth hartvigsen on how dead memes have persisted & transformed, steve garabedian on students writing "new" dead tunes, @shaugn & brian felix & chad jenkins unpacking the "mississippi half step" multi tracks & the individual parts of weir & godchaux & the nature of time itself, & @shaugn & chris coffman & me getting into robert hunter's "prelude" tape. #deadfreaksunite