WALTER: When Belly and I were younger men, we regularly ingested large quantities of L.S.D.
PETER: You don't say?
WALTER: We became convinced what we saw while on the drug was real. We believed that we were catching glimpses of another reality, another world just like ours but slightly different, populated by slightly different versions of ourselves. We all experience it momentarily as deja vu.
And Belly and I could prolong it with hallucinogenics. But the question of course was -- how to get there without LSD. Belly, as you know, theorized that young children have the capacity to see these other worlds naturally.