I dunno. Here’s Bly from the introduction to his Sixties-era poetry in Selected Poems:
Reciting political poems at Vietnam gatherings, I experienced for the first time in my life the power of spoken or oral poetry. A briefly lasting community springs to life in front of the voice, like a flower opening — it can be a community either of excitement or of feeling. The community flowers when the poem is spoken in the ancient way — that is, with full sound, with conviction, and with the knowledge that the emotions are not private to the speaker.
One poet’s experience, anyway. It would be cool to see how poetry might lead in an electronic era that, despite some promising developments, still tends to discourage “communities springing to life in front of a voice.”